2. Given that the lengths of two medians of $\triangle A B C$ are 5 and 10, respectively. If the length of the third median is also an integer, then the maximum length of the third median is ( ).
(A) 7
(B) 8
(C) 14
(D) 15
2. C.

Let the length of the third median be $x$.
It is well known that the three medians of a triangle can form a triangle, and the original triangle can be determined by the lengths of the three medians. Therefore,
$$
10-5<x<10+5 \text {. }
$$

Since $x$ is an integer, the maximum value of $x$ is 14.