AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Answer: B — Green plants
Green plants are autotrophs; they prepare their own food using CO₂, water, and sunlight (photosynthesis). Fungi and animals are heterotrophs; tapeworms are parasites.
The textbook (Chapter 5) states: "autotrophs include green plants and some bacteria." Fungi and animals are explicitly listed as heterotrophs. Tapeworms are parasitic heterotrophs. Examiners expect you to recall this direct definition.