a sentence containing a subordinate clause or clauses or you can also say its a complex sentence contains an independent clause and at least one dependent clause.
I believe it is going to be C but I may be incorrect.
Answer:
i think it definition 3
Explanation:
since he loved to learn about new things, he was most likely deeply attached to the things he was learning.
free points I guess I don't understand even what the sentence is 0-0