2- A piece of equipment costs $30,000, and is expected to generate $7,000 of annual cash revenues. The disposal value at the end of the estimated 10-year life is $3,000. Ignoring income taxes, the payback period is: A. 3.53 years. B. 3.86 years. O C. 4.29 years. O D. 6.98 years. O E. some other period of time not noted above