CRC uses A. Multiplication B. Binary division C. Multiplication

crc-uses-a-multiplication-b-binary-division-c-multiplication

CRC uses

A. Multiplication

B. Binary division

C. Multiplication & Binary division

D. None of the mentioned

This question was posed to me in an interview for internship.

My doubt is from Error Detection and Correction 1 in section Error Detection & Channel Coding of Digital Communications

Right choice is C. Multiplication & Binary division

To explain: CRC uses more math like multiplication and binary division.