Hey there!
Here is your answer:
The proper answer to this question is option B "negative".
Reason:
The key terms in the sentence "refuse to do things". Refuse is a key word for negative.
Also....
Barren means poor....
Drastic means extreme ....
Omniscient knowing everything.....
Therefore the answer is option B.
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit