13. Jemore bought some pencils at the school bookstore, each costing more than 1 cent, and paid a total of $1.43; Selena also bought the same type of pencils and paid $1.87. Then Selena bought ( ) more pencils than Jemore.
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
13. C.

Notice that, $(143,187)=11$.
Then the price of a pencil is a divisor of 11.
Since the price is more than 1 cent, the price of each pencil is
11 cents, and the number of pencils Selena bought more than Jamir is
$$
\frac{187-143}{11}=4 \text {. }
$$