Assertion : Acraniata is a group of organisms which do not have distinct cranium.
Reason : If includes small marine forms without head.

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

B

Explanation

Acraniata is a group of organisms in vertebrata that do not have cranium, jaws, vertebral column and paired appendages. These are marine form belong to group
Cyclostomata.