Explanation:

• Option A is correct because, in a defined contribution (DC) plan, the employee assumes the investment and inflation risk. The employee is also responsible for ensuring sufficient assets are available to meet retirement needs.

• Option B is incorrect because the responsibility for adequately funding the plan applies to defined benefit (DB) plans, where the employer typically bears the risk of funding the promised benefits.

• Option C is incorrect because defined contribution (DC) plans usually involve lower costs and risks for the company compared to defined benefit (DB) plans.