A & B Entered into a Contract of Lease Over

A & B entered into a contract of lease over A's house and lot. Without the consent of A, B assigned the lease to C. Is the assignment valid?

A) The assignment is valid because B has the right of possession over the leased property and can transfer it to anyone.
B) The assignment is void because of lack of consent of A.
C) The assignment is void because the same partakes of the nature of subjective novation which needs the consent of A.
D) The assignment is valid since it is a property of B which can be disposed of.