Sandalwood is a partial root parasite. Mistletoe (Viscum) is considered as hemiparasite which derives a part of nourishment from host plant. Orobanche is a holoparasite which infects species from favciae i.e., beans, ioranlhus. Ganodermna are parasite for example basidiocarpic mushrooms.
Hence the correct answer is option (a).
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