Emily spent the entire week at a client's site as part of the accounting team. Emily is just about to leave for the weekend, when she notices that there is an email from another small, but growing client that they have been working closely for the past 3 months. Emily has a good professional relationship with Rebecca, who sent the email. Rebecca has a question, which she needs an urgent response to. Answering the question in detail will require Emily to access a number of files in her own office. What should Emily do first?

A: Reply immediately that she needs more information before she can respond in detail, and that she will do it first thing on Monday morning. B: Rebecca will have gotten an out of office (OOO) response, so she can leave it for now and respond first thing on Monday morning. C: Call Rebecca to find out by when they need the information. If they need it right away, Emily can go to office, give the required details and provide a more detailed response on Monday. D: Reply to the email immediately, based on the information Emily has already and assure Rebecca that she will double check and send over a more detailed response first thing on Monday.