Which of the following would be a valid transfer under the Transfer of Property Act, 1882?

A. A lets a farm to B on condition that he shall walk a hundred miles in an hour

B. A gives Rs. 500 to B on condition that he shall marry A's daughter C. At the date of the transfer C was dead

C. A transfers Rs. 500 to B on condition that she shall murder C

D. A transfers Rs. 5000 to B on condition that he shall marry with the consent of C, D and E. E dies, B marries with the consent of C and D

Answer: Option D