In the following questions, some of the sentences have errors and some have none. Find out which part of a sentence has an error. The number of that part is your answer. If there is no error, your answer 18 (4) 1.e., No error.
At certain seasons (1), some areas on Mars (2)/ is subject to strong winds. (3)/ No error(4).

Answer

3

Explanation

Here, subject (some areas) is in plural number. Hence, plural verb i.e. are subject to strong winds .... should be used.