Choice A rationale:

The client's statement, "I've been experiencing frequent nosebleeds lately," is indicative of iron-deficiency anemia.

Iron is essential for the formation of hemoglobin, which carries oxygen in red blood cells.

When there is a deficiency of iron, the blood vessels in the nose can become fragile, leading to frequent nosebleeds.

This is a common symptom of iron-deficiency anemia.

Choice B rationale:

The client's statement, "I've been eating a lot of leafy greens in my diet," is not indicative of iron-deficiency anemia.

In fact, consuming leafy greens is a good dietary source of iron, which can help prevent iron deficiency.

Choice C rationale:

The client's statement, "I've had a fever for the past week," is not indicative of iron-deficiency anemia.

Fever is typically associated with infections or inflammatory conditions, not anemia.

Choice D rationale:

The client's statement, "I've been feeling more energetic than usual," is not indicative of iron-deficiency anemia.

In fact, one of the hallmark symptoms of iron-deficiency anemia is fatigue and a lack of energy due to reduced oxygen-carrying capacity in the blood.