How can you know if this equation is true?

1/3+1/5=2/8=14

A. This equation must be true because when you add fractions the sum is always less than 13.

B. Because 1/5<1/3, this equation must be true.

C. Because 1+1=2 and 3+5=8, this equation must be true.

D. Because 1/4<1/3, this equation cannot be true.