how do i send a document for signing and the send for signature option does not reflect

Please can someone advise as I am getting no joy via the support function on the adobe website.

  I had requested an order for Adobe XI professional. When I had logged into Adobe today and downloaded it was for Adobe DC. The whole purpose of acquiring the software was to be able to send documents for signing. Unfortunately the adobe DC does not seem to have that function or I just don’t know how to get to it. Please can someone help whether it be directing me or guiding me or referring me but I need to get this sorted. This whole implementation has been back and forth and is very very frustrating as I am missin