Answer:
[tex]\boxed {\sf B. \ Abrir}[/tex]
Explanation:
The sentence given is
which translates to
We want to fill in the blank. Usually, the infinitive verb can come right after a conjugated verb.
Pueden is the verb poder conjugated for ellos/ellas/ustedes. Since it is already conjugated, we can use the answer choice B. abrir because it is the infinitive (not conjugated).
The complete sentence is
which translates to
