Which of the following insurance advertising rules is false? Select one:

a. The name of the insurer will be clearly identified in all advertisements about the insurer and its products.

b. "Bonus interest" must be clearly specified in the policy with the terms and conditions the applicant has to meet to earn the bonus.

c. An advertisement must specify the date by which the applicant must mail the application which is between 10-40 days from the date the enrollment period is advertised for the first time.

d. An advertisement cannot offer enrollment periods.