Concept:Organisms that are both parasitic and autotrophic must obtain nutrients from a host while still carrying out photosynthesis.Explanation:Loranthus (mistletoe) is a plant that contains chlorophyll and can photosynthesize, so it is autotrophic.It also grows on host trees and absorbs water and mineral salts from them, making it parasitic.This makes Loranthus a hemiparasite: both autotrophic and parasitic.The other options are either purely heterotrophic parasites or non-parasitic autotrophs.Answer:B. Loranthus