Failure
Foolishness
Sickness
Negligence
Answer is Wrong!
Answer is Right!
The correct answer is A. Failure.
A dud is something that fails to work properly or to achieve its intended purpose. It can also be used to describe a person who is not successful or who is not very good at something.
The other options are not synonyms of dud.
B. Foolishness is the quality of being foolish or stupid.
C. Sickness is a state of ill health.
D. Negligence is the failure to take proper care or attention.