Student Name 13. What is the output for following C program? main() char s(1-"abcdef" printf(isin",s) A. abcdef .abcd C. abc D. ab 14. Before you can read or write to a file in C, what do you need to do? A. Create the file B. Call fclose on the file C. Use free D. Call fopen on the file 15 If a Cmain function is defined as below, what is argv[op void main(int arge, char argvt] A. The number of arguments to the program B. The name of the program C. The first argument to the program D. This syntax is illegal 16. The data type used for storing the thread id is A. pthread B. p thread t C. pthread id D. pthread t