What does this filter achieve?

exams CJE V1 CJE exam 0 Comments

A multi-configuration job contains the combination filter index% 4=1.

What does this filter achieve?
A . It removes 3 combinations In every 4.
B . It removes one combination in every 4.
C . It removes the fourth combination.
D . Nothing. The syntax is Invalid.
E . It removes the first combination.

Answer: B