(A) : A person standing on a rotating platform suddenly stretcehed his arms, the platform slows down.
(R ) : In case of person on a rotating platform angular momentum is constant.

Options

A. Both 'A' and 'R' and true and 'R' is the correct explantation of 'A'
B. Both 'A' and 'R' and true and 'R' is not the correct explantation of 'A'
C. A' is true and 'R' is false
D. A' is false and 'R' is true

Answer

A