A. Darken
B. Abolish
C. Differentiate
D. Confuse
✅ The correct answer is option C.
Darken : make or become dark or darker.
Darken : make or become dark or darker.
Abolish : formally put an end to (a system, practice, or institution).
Differentiate : identify differences between (two or more things or people).
Confuse : make (someone) bewildered or perplexed.
Distinguish : recognize or treat (someone or something) as different.
Synonym of Distinguish is Differentiate