What does the phrase 'pull free' imply?

The phrase 'pull free' implies the action of releasing or liberating something that is restrained or held back. When one pulls something free, they are usually exerting a force to detach or remove it from a position where it is stuck or entangled. This concept captures the idea of gaining freedom or space by eliminating the constraints that are holding something in place.

In contrast, the other options describe different actions: gathering closely refers to bringing things together, tightening a grip indicates a stronger hold, and engaging in conversation pertains to verbal interaction. None of these capture the essence of freeing something that is bound or stuck, making the interpretation of 'pull free' as a means of release or liberation the most fitting choice.