The leucocytes contain, which of the following in large quantity?
a)	Basophils	b)	Neutrophils	c)	Eosinophils	d)	Monocytes

(b)

Leucocytes or white blood corpuscles are colourless blood cells. These are of two types on the basis of presence or absence of granules in cytoplasm :

Granulocytes : Granules are present in cytoplasm of granulocytes.

Agranulocytes : Granules are absent in cytoplasm of Agranulocytes.

So, maximum numbers of leucocytes are neutrophils.