atoms of which three elements could bond together to form an organic compound?\ncarbon, calcium, and…

Brief Explanations:

Organic compounds are primarily composed of carbon - hydrogen bonds, and often also contain oxygen. Carbon is the key element for organic chemistry due to its ability to form a wide variety of stable covalent bonds. Hydrogen commonly bonds with carbon, and oxygen is also frequently present in functional groups of organic compounds like alcohols, aldehydes, etc. Calcium is not a typical element in organic compounds.

Answer:

D. carbon, hydrogen, and oxygen