Ergonomically designed computer keyboards tend to lose their

Ergonomically designed computer keyboards tend to lose their “play”—the responsiveness of the keys— more quickly than do traditional keyboards. A software designer has suggested that it is in fact the curvature of the key rows and not increased typing speed that is to blame. Due to the bent shape of the board, it is more difficult for the average user to clean between the keys, resulting in a gradual deadening of the spring mechanisms.

The answer to which of the following questions will most likely yield significant information that would help to evaluate the software designer’s hypothesis?
A. Do traditional keyboards and ergonomically designed keyboards utilize the same plastics?
B. Does sprinkling a keyboard with dust impede the spring action beneath the keys?
C. Does a keyboard with deadened play make typing more difficult?
D. Do computer manufacturers receive more complaints about ergonomically designed keyboards than about traditional keyboards?
E. Are software designers more likely than other users to utilize their keyboards when working?

OA B

Source: Princeton Review