Question

select the burette clamp.

Explanation:

A burette clamp is used to hold a burette in place during titrations in chemistry experiments. It is typically attached to a stand. The second image shows a stand - which is part of the setup with the burette clamp. The first image is forceps and the third is a different laboratory apparatus.

Answer:

The second image (the stand which is associated with the burette clamp setup)