Question

have expanding grappling fingers on one end to grab items, and the other end has a push mechanism to expand the fingers and a retracting spring to contract the fingers. select one: a. mechanical fingers b. magnetic fingers c. magnetic pickup tools d. mechanical pickup tools

Explanation:

The description mentions push - mechanism and spring, which are mechanical features, not magnetic. And it describes fingers for grabbing, not general pickup tools.

Answer:

a. Mechanical fingers