Estate planning

Bob's Will makes a few specific bequests to Donald and Nancy and then passes the remainder of his property to a revocable living trust. Which of the following statements is most correct?

A. This is invalid because the trust becomes irrevocable at the moment of Bob's death and cannot accept any new property.

B. This is ok; it is an example of a pour-over Will.

C. If Donald and Nancy predecease Bob then Bob is intestate as to those specific bequests.

D. None of the above statements is correct.