Answer:
Inquire whether the client qualifies for a special enrollment period, and if not, solicit an enrollment application once the annual open enrollment election period begins on October 15th.
Explanation:
In this scenario where Agent Harriet Walker is marketing Medicare Advantage and related products aimed at meeting the needs of senior citizens.
If Client Mildred Jones has expressed interest in a Medicare Advantage plan and it is now the beginning of September.
The best action is to enroll her of she qualifies for special enrollment period.
If she is not qualified she should solicit an enrollment application once the annual open enrollment election period begins on October 15th.
Harriet should keep engaging Mildred's interest till 15th October.