Assertion : Universe is expanding.
Reason : The result is based on red shift in the spectra of galaxies.
A. If both, Assertion and Reason are true and the Reason is the correct explaination of the Assertion.
B. If both, Assertion and Reason are true but Reason is not a correct explaination of the Assertion.
C. If Assertion is true but the Reason is false.
D. If both, Assertion and Reason are false.