ANSWER IS B. CUMULATIVE TRAUMA DISORDERS EVOLVE OVER A PERIOD OF TIME. Cumulative trauma disorders (CTD) is an excessive wear and tear on the muscles, tendons and sensitive nerve tissue due to excessive use or abuse over a period time. It can develop from improper work positioning, repetition or force. Those that works with computers in the office, for example, they may develop carpal tunnel syndrome caused by prolonged use of computers which eventually makes it painful for the fingers and hand to move because of the compression of a major nerve in the carpal bones and wrist.