RRB Group D (Level-1 posts) 2014 · Question 111 of 324

White Blood Cells acts in which manner?

Answer: A. As a defence against infection

Official answer key verified. Detailed explanation coming soon.

Source: RRC Group D Exam Paper – Delhi (held 23-11-2014) · reliable-secondary

Practice the full RRB Group D (Level-1 posts) 2014 paper

Timed test with all 324 questions, just like the real exam.