Landlord leased her suburban ice cream parlor for three years at a rent of $2000 a month to Baskin. Six months later, Baskin transferred his interest in the lease to Herrell. One year later, Herrell transferred his interest in the lease to Ana. Now, none of the parties is paying the rent. Landlord wants to sue Herrell for the rent, "because he is the only one who can probably pay the rent that is due." In order to sue Herrell for the remaining rent, Landlady will have to prove: 

a-That the transfers from Baskin to Herrell, and from Herrell to Ana, both conveyed the full remaining interest in the leasehold.   

b-That the transfer from Baskin to Herrell conveyed the full remaining interest in the lease leasehold, but the transfer from Herrell to Ana conveyed less than the full remaining interest in the 

c-That the transfer from Baskin to Herrell conveyed less than the full remaining interest in the leasehold, but the transfer from Herrell to Ana conveyed the full remaining interest in the lease.

 d- That the transfers from Baskin to Herrell, and from Herrell to Ana, both conveyed less than the full remaining interest in the leasehold.