What element do all organic compounds contain?
nitogen
oxygen
carbon
hydrogen

Option C, Carbon

Explanation:

Carbon is the most abundant non metal found in all organic matter. Be it protein, carbohydrates, fats, DNA, lipids or any any other organic compound, all have either simple or complex structures comprising of carbon molecule as a major building block.

In terms of organic chemistry , any molecule that has carbon as  a central element along with several other elements such as hydrogen , nitrogen , phosphorus etc is an organic compound. Carbon is a versatile element and is able to form four covalent bonds. These properties make it more preferable element for organic substances.

Hence, option C is correct

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answer; i believe the answer is (polygenic inheritance;