Assertion In isochoric process p-V graph is straight line parallel to p-axis.
Reason In isochoric process density p remains constant.
A. If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
B. If both Assertion and Reason are correct but Reason is not the correct explation os Assertion.
C. If Assertionis true bur Reason is false.
D. If Assertion is false but Reason is true.