Questão número 636679

Choose one of the sentences below to complete the closing remark in a business letter:

 If you have any further questions, .............................................

• A.

  we regret to inform you that we can't.

• B.

  please look forward to.

• C.

  just give me a call.

• D.

  just ask your colleagues.

• E.

  please do not hesitate to ask.