Teresa Rented an Apartment from Len for One Year,beginning January

Teresa rented an apartment from Len for one year,beginning January 1st,2008.When Teresa tried to take possession of the rental unit,Paul,a prior renter,was still there.Teresa asked Len to help her get Paul out.Len simply shrugged,telling Teresa that it was now her problem.Which of the following statements is true?

A) Teresa must bring an eviction action against Paul.
B) Teresa must wait for Paul to vacate the premises at his convenience.
C) Len breached the implied warranty of possession.
D) Len and Teresa have created a periodic tenancy.