š@%What does a C style comment end with?;/*//*/&Day 2 "The Components of a C Program"*/-Which function is required in all C programs? required ( )main ( ) start ( ) begin ( )&Day 2 "The Components of a C Program"main ( )&When must a function prototype appear?Before the function is usedAfter the function is usedanywhere in the source code not at all&Day 2 "The Components of a C Program"Before the function is used0What is the standard extension of include files?.Cobj.exe.h&Day 2 "The Components of a C Program".hHWhat library function allows keyboard input to be read into C variables?printffprintfscanffopen&Day 2 "The Components of a C Program"scanf5What library function displays information on-screen?printfscanffopenfclose&Day 2 "The Components of a C Program"printf-What character is the multiply operator in C?/%!*&Day 2 "The Components of a C Program"*/Which of the following are native C data types?intstringcolorshape&Day 2 "The Components of a C Program"intA user-defined function is:written by the programmerprovided by the compilerprovided by the OSnone of the above&Day 2 "The Components of a C Program"written by the programmer0Which of the following is a legal comment block?/* a comment /* /* a comment**/ a comment ./*none of the above&Day 2 "The Components of a C Program"none of the above]Which reserved word causes program execution to resume at the line following a function call?ifreturnswitchcase&Day 2 "The Components of a C Program"return$What is a variable name assigned to?functionprogramdata storage locationkey word&Day 2 "The Components of a C Program"data storage location.What is used to send information to functions?mail include files argumentscomments&Day 2 "The Components of a C Program" arguments4What are the statements in a function surrounded by?braces semicolonscomments parentheses&Day 2 "The Components of a C Program"braces*When is normal program execution complete?when the result is displayed9when the last statement in the main function has executedwhen a run-time error occursnone of the above&Day 2 "The Components of a C Program"9when the last statement in the main function has executed"How often should comments be used?never infrequently frequentlyonce per source file&Day 2 "The Components of a C Program" frequentlyBCalling a function involves including this in a program statement:the function namethe executable's name your name variables&Day 2 "The Components of a C Program"the function name2To improve code portability, avoid which of these:nested commentsfunction calls variableskeywords&Day 2 "The Components of a C Program"nested commentsbWhich compiler directive is used to add the contents of a file to your program during compilation?#ifdef#pragma#endfnone of the above&Day 2 "The Components of a C Program"none of the above-Which of the following are legal syntax in C? /* comment */int a;x=m*n;all of the above&Day 2 "The Components of a C Program"all of the above