Consider the following statements regarding haemoglobin: 1. It contains iron 2. It is a carrier of oxygen in the blood 3. It imparts red colour to the blood 4. It provides immunity against certain diseases. Of these statements
Options
(a)1, 2 and 4 are correct
(b)1, 2 and 3 are correct
(c)1, 3 and 4 are correct
(d)2, 3 and 4 are correct
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