Assertion: Human heart is myogenic.
Reason: Normal activities of the heart are regulated intrinsically, il.e., auto regulated by specialised muscles (nodal tissur).
A. If both asseration and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
C. If assertion is true reason is false.
D. If both assertion and reason are false.