Edward Enters into a Lease with Charles to Rent Commercial

Edward enters into a lease with Charles to rent commercial property and use it as a convenience store.The lease is for a term of five years.After a couple of months,Edward's business is not doing very well,so Edward decides to assign the lease to John,who makes his rent payments directly to Charles.In this case

A) the assignment to John makes only Edward liable to Charles for a breach of the lease.
B) the assignment to John makes both Edward and John liable to Charles for a breach of the lease.
C) the assignment to John makes only John liable to Charles for a breach of the lease.
D) the assignment to John discharges the lease between Edward and Charles.
E) none of the above