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                                               Directions: In the following questions, a statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as: Assertion (A): Drift velocity of electrons is independent of time. Reason (R): Electrons are accelerated in the presence of electric field.                                           

A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A)        

B) Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A)

C) Assertion (A) is true but Reason (R) is false             

D) Assertion (A) is false and Reason (R) is also false