b) #include c) #include Which of the following libraries is used to make the programmer able to use the (sin(x)) function in a2)d) #include C++ program?a) #include c) #include b) #include d)...

Extracted text: For each question, choose the correct answer from the multiple-choice list: Part A Which of the following libraries is used to make the programmer able to use the (cin) function in a C++ 1) program? a) #include b) #include c) #include Which of the following libraries is used to make the programmer able to use the (sin(x)) function in a 2) d) #include C++ program? a) #include c) #include b) #include d) #include For inserting a comment in the C++ program, which one of the following statements can be used? 3) a) // comment b) /* comment d) \t comment c) # comment The data type that used to hold ASCII code in the C++ language is a) char c) double 4) b) float d) int What is the size of (long double) data type in C++? 5) a) 10 b) 4 c) 8 Which of the following is the correct identifier? a) $var_name c) VAR_123 d) 2 6) b) 123_VAR d) varname@ The data type that used to hold the integer number with 2-byte size in the C++ language is a) int 7) b) double c) short int d) long int Which of the following declarations is not correct? 8) a) char h = 'a'; b) char h = '@'; d) char h = '2'; c) char h = 'ali'; Which of the following identifiers is the keyword? 9) a) COUT b) Cout d) #cout c) cout Which operator has the lowest precedence? 10) a) % b)/ d) ++ c) +