Read this sentence from dante's inferno, canto i, in which virgil introduces himself. if you shall wish to ascend to the blessed, a soul worthier than i shall guide you. what does this sentence most likely imply about virgil’s understanding?

a. virgil wishes that he had strength to guide people.
b. virgil thinks that only rich individuals are blessed.
c. virgil fears that the path to heaven is too steep.
d. virgil realizes that only believers reach heaven.