Joint Supply of Honey and Beeswax

Steps:

• Observe that beehives contain both honey and beeswax as natural products.
• Note farmers extract honey while birds seek beeswax from the same hives.
• Recognize both goods arise simultaneously from the same source without separate production.
• Conclude this indicates joint supply, where multiple outputs come from one process.

Why C is correct:

• Joint supply occurs when two or more products are produced together from the same input, as defined in economics, here with honey and beeswax from beehives.

Why the others are wrong:

• A: Farmers and birds cooperate via guidance, not compete as rivals.
• B: Goods require effort to locate and extract, so not free (zero cost).
• D: No trade-off exists; honey and beeswax are obtained together, not as costs.

Final answer: C