I don’t know if this is the answer but I would say “to help teachers make sure students don’t plagiarize”
Apathy, indifference, dullness, blandness, etc..
D. Tenderness
It is the word that most similarly relates.
Answer:
1. and
2. but
3. since
4. although
5. but
Explanation:
not sure, but from what I've studied
The answer is D. Connotation