Based on the information provided, the new "wonder food" contains only carbon, oxygen, and hydrogen. This composition is characteristic of several types of organic compounds, primarily carbohydrates and lipids (fats), including triglycerides.
Here’s a breakdown of the options:
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a. includes proteins: This is unlikely because proteins are made of amino acids, which contain nitrogen (and sometimes sulfur) in addition to carbon, oxygen, and hydrogen.
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b. does not include proteins or nucleic acids: This is true since neither proteins nor nucleic acids can be made solely from carbon, hydrogen, and oxygen.
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c. could only be made of triglycerides: This could be true, but it's not the only possibility. The food might also involve carbohydrates or other types of lipids, but triglycerides are an example of a fat that fits the composition.
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d. could only be made of carbohydrates: This could also be true, but similarly to option C, it limits the possibilities. The food might also be made up of fats.
Given the options, the best answer is:
b. does not include proteins or nucleic acids.