Grace Morrison Works as a Marketing Executive at the Citizens

Grace Morrison works as a marketing executive at the Citizens Bank in China.She is organizing a marathon event for its customers and employees,the participation funds for which will be contributed toward homeless children in Beijing.However,the event is just a week away and the participation so far has been extremely low.This may cause the bank to cancel the event.She now needs to write to her manager about the update so that she can take an immediate decision on it.Which of the following would be the best subject line for Morrison's e-mail?

A) Status of the Beijing Marathon Event
B) Low participation for Beijing Marathon Event
C) Update on the Beijing Marathon Event
D) Details: Beijing Marathon Event, 2011
E) Marathon Update for your Reference