A notary's commission expired on February 15, 2016. She renewed her commission before her old commission expired, and the new commission began on February 16, 2016. Since she has a new commission with a new commission number, which of the following should the notary do:
a. Use the old commission number for all notarial acts
b. Begin using the new commission number for all notarial acts
c. Disclose both old and new commission numbers on notarial acts
d. Consult legal counsel for guidance on commission numbers