<span>To stifle is to cut off, hold back, or smother. You may stifle your cough if you don't want to interrupt a lecture or you may stifle the competition if you fear losing. The verb stifle means “to choke, suffocate, drown.” ... At its most extreme, stifle means to kill by cutting off respiration.</span>
I think it is D. Possibly A but most likely D. Hope this helps :)
Answer:
Complex sentence
Explanation:
Complex sentences are made up of clauses joined using subordinating conjunctions eg. but
Compound sentences use co-ordinating conjunctions eg. For, And, Because, etc.