<span>A. fruiting body.
</span>
Mushroom is an example of a heterotroph.
Autrophs are the organisms that have the capacity to form their own food from inorganic substances like the carbon dioxide.
<span>Heterotrophs are the organisms that cannot produce their own food but depends on other animals or plants for their nutritional needs. </span>
<h2>Answer</h2>
Fossils are often found in <u>Sedimentary</u><u> </u><u>rocks</u> because it is formed from the remains of once living things.
<h3>#CarryOnLearning</h3>

The characteristic of bacteria that makes them efficient transgenic organisms to produce insulin or other medicines is they readily accept new genetic material.
<h3>What do you mean by Transgenic organisms?</h3>
Transgenic organisms may be defined as an organism whose genome has been modified by the insertion of one or more foreign (non-self) DNA sequences from another species via artificial means.
A Plasmid is a circular DNA that assists in the insertion of foreign DNA sequences into the bacterial cell.
Therefore, the characteristic of bacteria that makes them efficient transgenic organisms to produce insulin or other medicines is they readily accept new genetic material.
To learn more about Transgenic organisms, refer to the link:
brainly.com/question/3443891
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I don't think the answer is A as that seems a bit drastic, I think it's C.