Patty and Henry sign a residential tenancy agreement specified to last for one year commencing on January 1, 2005, and ending December 31, 2005 but not specifically requiring the tenant to vacate the rental unit at the end of the tenancy. Assuming neither party has given notice to end the tenancy agreement, which of the following statements about Patty and Henry's agreement is true under the B.C. Residential Tenancy Act?
a. On December 31, unless the agreement provides otherwise, the term will automatically renew as a month-to-month tenancy.
b. The agreement automatically terminates on December 31.
c. Patty and Henry must renegotiate the terms on December 31.
d. The agreement converts to a fixed-term tenancy.