Concept:Parasitic plants are plants that obtain food and water from other living plants. Important examples are Striga, dodder, and mistletoe.
Explanation:Check each option to see if it contains only parasitic plants.
Option A: Nematode, fungus, and bacterium are not parasitic plants.
Option B: Striga and dodder are parasitic plants, but nematode is an animal, not a plant.
Option C: Dodder and Striga are parasitic plants, but fungus is not a plant.
Option D: Mistletoe is a parasitic plant, but fungus and bacterium are not plants.
Therefore, none of the given groups contains only parasitic plants.
Answer:As printed, no listed option is correct. The correct group of parasitic plants should be Striga, dodder, and mistletoe.