C: the sinner who have committed the least grave sins are punished by being forced to inflict harm upon others
The answer to your question would be A
A and D because stirring could be replaced w the other ones and the sentence would have the same meaning
-i am not the owner of these bones
-these bones are not under my custody
-i do not own these bones
is this what you mean?
D- gerunds include 'ing' which allows a verb to act as a noun.
