문제 내용: 어법상 옳지 않은 것은?
선택지 1: Fire following an earthquake is of special interest to the insurance industry.
선택지 2: Word processors were considered to be the ultimate tool for a typist in the past.
선택지 3: Elements of income in a cash forecast will be vary according to the company's circumstances.
선택지 4: The world's first digital camera was created by Steve Sasson at Eastman Kodak in 1975.