I get it!
a. carbohydrates - glycogen or starch (these are sugars)
b. proteins - hemoglobin or enzyme (these are examples of proteins)
c. lipids - cholesterol or fat
d. nucleic acids - DNA or RNA
Adenine, Cytosine, Guanine, and Thymine.
Answer:
it would be all of the above
It’s is letter B because in every other state they do not use uranium