Assertion : The exoskeleton of arthropods is made up of complex polysaccharide called chitin.
Reason : Plant cell walls are made of cellulose.

A : If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
B: If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
C : If Assertion is true but the Reason is false.
D :If both Assertion and Reason are false.

Answer

B

Explanation

Polysaccharide are complex carbohydrates which are formed by polymerisationof large number of monosaccharide monomers. Exoskeletons of arthropods, contain a complex polysaccharide called chitin. These complex polysaccharides are heteropolymers. Plant cell walls are made up of cellulose. Paper made from plant pulp and cotton fibre is cellulosic. Cellulose is homopolysaccharide.