Provide examples of monophagy, oligophagy, and polyphagy feeding strategies with representative insects.

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Monophagy, oligophagy, and polyphagy describe how many host plants an insect can or does use. Monophagy means feeding on a single plant species (or plants that are nearly identical in host use). A classic example is monarch caterpillars, which feed almost exclusively on milkweed. Oligophagy means feeding on a few related plant species, often within the same family or group; many aphids fit this pattern, feeding on a small range of related plants. Polyphagy means feeding on many plant species across different groups; the potato beetle feeds on a broad set of solanaceous crops like potato, tomato, and pepper, illustrating a wide host range. The other options mix up these definitions or give mismatched examples, so the first set best aligns with how these feeding strategies are defined.