Jimi Allows Petra to Live in His Apartment Building So

Jimi allows Petra to live in his apartment building so long as Petra provides the landscaping on Jimi's buildings. Frederick, Jimi's brother, claims this arrangement is illegal and Petra should leave. Is Frederick correct?

A) No, Frederick is incorrect because Petra may stay in the apartment if the illegality is cured.
B) Yes, because rent is an integral part of the landlord-tenant relationship.
C) Yes, Petra should be evicted for failure to pay rent.
D) No, rent can be paid in various forms, such as money or services to the landlord.
E) Yes, rent consists of a monetary form of payment.