Len walks 3/10 mile in the morning. He walks 2/5 mile in the afternoon to a friends house. Len says that he walks a total of 5/15 mile in the morning and afternoon which two satements are true

A.since 3/10 + 2/5 is 5/15,the total of 5/15 is reasonable

B.since 5/15 is less than 2/5,the total of 5/15 is not reasonable

C.the fractions 5/15,3/10,and 2/5 are all less than 1/2, so the total of 5/15 is reasonable

D.the fractions 5/15 is 1/3,and 1/3 is greater than 3/10. Since 5/15 is greater than one of the addends, the total of 5/15 is reasonable

E.the fractions 3/10 and 2/5 are each greater than 1/4,so the total of 5/15 is not reasonable.