Assertion : In mollusca, circulatory system is of closed type
Reason : The blood of mollusca contains haemoglobin

Options

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C. If the assertion is true but the reason is false
D. If both the assertion and reason are false

Answer

D

Explanation

In Mollusca, circulatory system is of open type with a heart made up of two auricles and a ventricle. The blood has haemocyanin.