Consider the following statements about haemoglobin:

1) It carries oxygen in the blood.
2) It is iron containing compound.
3) It provides immunity against certain disease.
4) It imparts red colour to the blood.

The correct statements out of these are:

A) 1,2 and 3

B) 2, 3 and 4

C) 1, 3 and 4

D) 1, 2 and 4

This MCQ is part of the UP PSC Previous Year Questions (PYQs) series, focusing on UPPSC Prelims 2016 (GS Paper I)