Easy
1 point
ID: #15287
Question
One of the crucial - traffic jam.
Options
1
problem in
Correct Answer
2
problems is
Correct Answer
3
probles are
Correct Answer
4
problems were
Correct Answer
Explanation
The phrase 'One of the' is followed by a plural noun ('problems') but takes a singular verb ('is') because the subject is 'One'. Thus, 'problems is' is the correct grammatical structure.