Three functional groups found in this compound are A) alcohol, aromatic, and ether. B) alcohol, aldehyde, and ether. C) alcohol, ether, and ketone. D) aldehyde, ether, and carboxylic acid. E) cycloalkene, alcohol, and carboxylic acid.

C) alcohol, ether, and ketone.

Explanation:

In the compound of the image an alcohol group (-OH), a ketone (-COCH3) and an ether (-OCH3) are observed.

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

it means there are 3 atoms of oxygen