If the sentence has changed you would have to put a period.
It means "with or "thoroughly"
So the answer would be with.
The correct answer is C. Gideon was the son of a tribal medicine men, so all of this knowledge was passed onto him. However, he (along with the other African servants) do not reveal the name of the medicinal root, regardless of (and perhaps in spite of) the potential monetary benefits involved with telling the white people about their medicine.
"Carla decided to practice her music before she started her homework."
Prepositions: under, next, behind, between, into etc
