A fixed annuity provides payments (or credited interest during accumulation) based on a guaranteed rate and/or guaranteed payout set by the insurer. Because the payment amount is generally level once annuitized (unless an inflation rider or increasing-payment option is selected), the key drawback is inflation risk : over time, rising prices can reduce the purchasing power of those fixed payments. In other words, the annuitant may receive the same dollar amount each period, but that amount may buy less in the future.

Option B describes a feature more consistent with variable annuities , where benefits are not guaranteed at a specific level because values depend on investment performance. Option C is also a characteristic of variable annuities (separate account investments and fluctuating returns), not fixed annuities. Option D is not a standard limitation of fixed annuities; payout periods depend on the selected settlement option (life, period certain, joint life, etc.), not an automatic “2 years after death” cap. Therefore, the commonly tested disadvantage of a fixed annuity is the potential erosion of buying power due to inflation.

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