Question

In linux, apart from including math header file, the program is successfully executed by which of the following?

(a) cc filename.c

(b) cc filename.c -lc

(c) cc -math filename.c

(d) cc -lm filename.c

The question was posed to me in a job interview.

My doubt is from Mathematical Functions topic in section Input and Output in C of C

Answer 1

The correct answer is (d) cc -lm filename.c

Best explanation: None.