【单选题】

Ms. Pamela Jenkins

145 HardwoodDrive
Alton, MA、02187
August 15, 2010
Dear Ms. Jenkins,
According to our records, your subscription to theAlton Herald is due to expire at the end of this month. Unless you renew your subscription within the next two weeks, the newspaper will no longer be delivered to your premises.
Subscriptions are all handled online now, so in order to renew, please visit our website at www. altonheralD、com.By clicking on the "renew" button in the top right corner and following the simple instructions, you will ensure that you continue to receive a hard copy of the paper every day. Moreover, you will also be entitled to view premium news content on our website, such as exclusive pictures and videos, expert opinion and analysis, and much more.
Regards,
The Team —Alton Herald
What is the main purpose of this letterA．To double-check a subscriber’s personal details
B．To remind a subscriber to renew a contract
C．To explain a change to the subscription service
D．To advertise a newly launched newspaper