Assertion `:` The opening between the right atrium and the right ventricle is guarded by a bicuspid or mitral valve.
Reason `:` The valves in the heart allows the flow of blood only in one direction.
A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion .
B. If both Assertion & 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 & Reason are false.