Select the correct alternative that shares the same relationship as the given…

Concept

This is a "cause : impaired-capacity" analogy. The first word names an agent or condition; the second word names the one specific capacity that the agent directly reduces. The correct match must be the precise capacity attacked, not a vague overall state.

Application

1. Fog directly reduces visibility, which is one specific, named capacity.

2. AIDS stands for Acquired Immuno-Deficiency Syndrome; by definition it is a deficiency of immunity, so the specific capacity it reduces is the body's resistance (immunity).

3. Applying the pattern "an agent reduces a specific capacity" gives Fog : Visibility :: AIDS : Resistance.

Contrast

• Resistance: the body's immunity, the precise capacity AIDS depletes, mirroring how fog depletes visibility.

• Health: a broad overall condition, not the single defining capacity that is reduced.

• Virus: an agent or cause that parallels fog itself, not a capacity that is reduced.

• Death: a final outcome, not a capacity being gradually diminished.

Result

Resistance.