Question

first read: concept vocabulary identify the choice that best answers the question. when something has been calibrated, which of the following must have been used? a gift wrap b a vehicle c protective gear d a measuring system

Explanation:

Calibration involves adjusting an instrument or device to ensure it measures accurately. This requires a measuring system to compare against and make adjustments. Gift wrap, a vehicle, and protective gear have no relation to the process of calibration.

Answer:

D. a measuring system