A set of 10 new questions in each round. Question: ( 1 of 10 ) If the sum of the ages of two people is 31 and the difference between their ages is 5, then find their ages. (A) 36 years and 26 years (B) 18 years and 13 years (C) 27 years and 20 years (D) 31 years and 5 years