The answer is D. Use absorption to obtain nutrients
Through the process of photosynthesis:
A. Use photosynthesis to make food - FALSE - Fungi do not perform photosynthesis.
B. Reproduce sexually - FALSE - Fungi do reproduce sexually but many other organisms do as well.
C. Unicellular - FALSE - Some of fungi are unicellular but there are other organisms that are unicellular as well.
D. Use absorption to obtain nutrients - TRUE - Fungi are saprotrophs. This means they obtain nutrients by absorption and are the only organisms able to perform only this way of nutrition.