A set of 10 new questions in each round. Question: ( 2 of 10 ) If Matthew can finish the work in 26 days and Edward can finish the same work in 30 days, then in how many days both can finish the work together? (A) 13 13/14 days or 13.929 days (B) 28 days (C) 56 days (D) 26 13/14 days or 26.929 days