A RETIREMENT PLANNING MINI$-$CASE Alpha Corporation is considering its alternatives in relation to establishing a retirement plan for its employees. Please help the CFO of Alpha Corporation answer the followingquestions:Case Questions $1.$ Alpha Corporation has $100$ full$-$time nonunion employees. What is the minimum number ofemployees that must be allowed to participate in the company's defined benefit plan?a$.40$b$.50.75$d$.1002.$ The CFO would like to implement a $401($k$)/$profit sharing plan. If $75\%$ of the firm's employees stay with the company for only two years $($i$.$e$.,$ the firm has high turnover$),$ and the remainder stay for an average of at least $10$ years, which vesting schedule should the CFO choose if shewants to minimize plan administration costs?a$.2-6$ year graduatedb. $3-$year cliffc. $3-7$ year graduatedd. $5-$year cliff