Question

the empty doorway, the inert object on the floor, the darkness, accented rather than diminished by the embers, blurred his calculations. source: the gray man in the sentence above, inert has the same or almost the same meaning as: motionless weightless apparent vacuous

Explanation:

The word "inert" in English generally means lacking the ability or strength to move. "Motionless" also implies not moving. Among the options, "motionless" is the closest in meaning to "inert". "Weightless" refers to having no weight, "apparent" means obvious or clear, and "vacuous" means empty - headed or lacking content, none of which are related to the meaning of "inert" in this context.

Answer:

A. motionless