For this case we can translate the given sentence as:
Baseball players _______ from one base to another.
We must complete the sentence with the most appropriate verb, we have the following options:
Logically, in a baseball game the bases must be run by the players, so the correct option is "corren"
Answer:
Los beisbolistas corren de una base a otra.
The answer would be es because it's talking about pronouns
Two- La Paz, administrative capital and Sucre, constitutional capital
I believe that your answer is correct! I hope this helped in a way.