Answer:
Simplified Employee Pension IRA (SEP)
Explanation:
Simplified employee pension IRA is most suitable for this client because it is easy to set up and operate. Most importantly it requires a maximum of 20% of the contributor's income. The amount required is capped at $54,000.
In this case 20% of the employee's income is 0.20 * 200,000 = $40,000
So this is a right fit.
Roth IRA will not work because maximum contribution is $5,500
Traditional IRA will also not work because it requires a maximum contribution of $5,500 or when it is a 401(k) plan a maximum of $18,000. It is also expensive to set up and operate as it is designed for big companies.