A set of 10 new questions in each round. Question: ( 1 of 10 ) If Michael can finish the work in 8 days and Thomas can finish the same work in 11 days, then in how many days both can finish the work together? (A) 9.5 days (B) 4 12/19 days or 4.632 days (C) 19 days (D) 8 12/19 days or 8.632 days