What is your main purpose for writing this message?

Multiple Choice

to formally communicate a policy change to all credit union members and encourage them to sign up for debit cards if they do not have one

to formally communicate a policy change to debit card users and encourage them to use their debit cards

to remind debit card holders to use their debit cards by October $15$ to avoid a penalty

to promote the benefits of using a debit card and answer credit union members' questions

to let all credit union members know that they should visit Facebook or Twitter to learn about your new debit card policy