Which of the following is an example of a total root parasite?

Correct option is A

✅ (a) Orobanche: • Orobanche is a total (obligate) root parasite. • It lacks chlorophyll and depends entirely on the host plant for nutrients and water. • Attaches to the roots of crops like tobacco, brinjal, and sunflower.
❌ (b) Cuscuta: • A total stem parasite, not root parasite.
❌ (c) Loranthus: • A partial stem parasite, performs photosynthesis but derives water/minerals from host.
❌ (d) Cyprus: • Not a parasitic plant; it’s a genus of grass-like plants.