Question

a applies force underneath an object such that the object can be elevated and carried accumulator object manipulator plow friction grabber scoop

Explanation:

A plow is a tool that applies force underneath an object (like soil) to elevate and move it. An accumulator stores energy, an object manipulator is a broader term not specific to this action, a friction grabber uses friction to hold, and a scoop is for scooping (not applying force underneath in the described way).

Answer:

Plow