It has been researched to have at least 100 billion
The answer is a. necessary and proper. (i'm not positive that that's correct but that's what i would put.
Answer:
His followers/disciples
Explanation:
Jesus' followers and disciples traveled with Him, to help teach others.
After the death and resurrection of Jesus, they still helped spread His Word.
~theLocoCoco
I think C is the answer as well it seems most logical lol