Skatium, the city's most popular roller skating rink, has a profit sharing plan for their employees. Skatium has the following employee information: The plan requires the standard eligibility and the least generous graduated vesting schedule available. The plan is not top-heavy. All of the following statements arc correct except: a. Dan and Karen arc 20 percent vested in their benefits. b. Brett and Greer became 100 percent vested when they had been employed for six years. c. Three of the seven people are eligible to participate in the plan. d. Craig is not eligible for the plan