Analogy — Producer and its output: Gland : Enzyme :: Generator : ? Choose the output produced by the stated producer, mirroring “gland produces enzyme(s)”.

Introduction / Context:
Many glands secrete enzymes; a generator “produces” electrical current. The mapping is “producer → output”.

Why Other Options Are Wrong:

• Muscle : Spasm — Spasm is a malfunction, not an intended output.
• Organ : Kidney — Whole-to-part relation.
• Brain : Cortex — Part-of-brain relation, not output.
• None of these — invalid since “Generator : Current” fits.

Final Answer:
Generator : Current