Why do we use acetic anhydride for this reaction? List two other possible sources of the acyl group and why they would be a better/worse choice for this reaction, mechanistically, practically, and by the principles of green chemistry.

Spontaneity tell us the direction of the reaction, but not how fast it goes. gibbs free energy brings together enthalpy, entropy and temperature in one easy formula. g = h - ts. and, finally the sign of delta g is always negative for a spontaneous reaction.

What does that mean you dum bum

The answer is b because c don't explain why the moths are on them and it isn't a because as we know only one species of moth does this