What type of plans may include excess plans, offset plans, or deferred compensation?

Nonqualified plans are designed to provide additional retirement benefits beyond the limits imposed by qualified plans. They often include excess plans, which allow higher-level employees to receive benefits that exceed the contributions permitted under qualified plans. Offset plans are structured to reduce retirement benefits from other plans to optimize tax advantages and payouts. Deferred compensation arrangements enable employees to defer a portion of their income to be received at a later date, usually to manage tax liability and retirement benefit levels.

In contrast, qualified plans have specific IRS requirements to ensure they meet legal standards, which often cap contribution amounts and restrict certain types of benefits. Defined contribution plans focus on individual accounts rather than guaranteed payouts, and retirement plans with government oversight must adhere to strict regulations, which typically do not allow the flexibility found in nonqualified plans. Thus, nonqualified plans are specifically designed to accommodate the features mentioned in the question, making them the correct choice.