John went to the beach with his grandchildren. Who are they?

• A. The children of his children.
• B. The children of his siblings.
• C. The children of his cousins.
• D. The people at the beach.

Answer: (A)

Understanding family relationships. A grandchild is the child of your own son or daughter, so the people John went with are the children his children had—his grandchildren. The children of his siblings would be nieces and nephews, not grandchildren, and the children of his cousins would be cousins (not grandchildren). The people at the beach could be anyone, so that option doesn’t fit the description.