Answer:
A. It stores energy as glucose.
Hope this helps!
The form of RNA that your are referring to is tRNA. tRNA stands for t(ransfer) R(ibosomal) N(ucleic) A(cid). tRNA transports amino acids to the ribosome during protein synthesis.
There's a lot of compounds but one really known one is H2O because it's made out of hydrogen and oxygen atoms.