A. Dreary
B. Dreadful
C. Deadly
D. Strange
✅ The correct answer is option C.
Dreary : depressingly dull and bleak or repetitive.
Dreary : depressingly dull and bleak or repetitive.
Dreadful : causing or involving great suffering, fear, or unhappiness; extremely bad or serious.
Deadly : causing or able to cause death.
Strange : unusual or surprising; difficult to understand or explain.
Lethal : sufficient to cause death.
Synonym of Lethal is Deadly