Respuesta :
Answer:
He, having studied Latin, was well versed in it.
Explanation:
This answer is more logical and progressive according to the English word rules and linkages. The combination which gave the above sentence shows that, he was well versed in Latin having gotten the opportunity to study Latin.
The other options given is either gramaticallly wrong or the word arrangement was wrong.
He was well versed in Latin, which he had studied.
I got it correct on gradpoint