Assertion (A) : It is not possible to increase the overall voltage amplification by cascading common collector stages.Reason (R): The voltage gain of a common collector configuration is less than unity.

• A. Both (A) and (R) are true and (R) is the correct explanation of (A).
• B. Both (A) and (R) are true, but (R) is not the correct explanation of (A)
• C. (A) is true, but (R) is false.
• D. (A) false, but (R) is true.