Directions.In the following question, a statement of asertion followed by a statement of reason is given .Choose the correct answer out of the following choices:
Assertion and reason both are correct statements and reason is correct explanation for assertion.
Assertion and reason both are correct statements but reason is not correct explanation for assertion.
Assertion is correct statement but reason is wrong statement.
Assertion is wrong statement but reason is correct statement.
Assertion:Visible ligh is unable to uase the photoelectric emission from a metal surface.However,ultaraviolet ligth can cuase the photoelectric emission from the same metal surface
Reason:The threshold fruquency of the metal surface is greater than frequency of the visible light but less than that of the ultravtiolet light.

Options

A. A
B. B
C. C
D. D