In the following question, one part of the sentence may have an error. Find out which part of the sentence has an error and click the option corresponding to it. If the sentence is free from error, click the 'No error' option. Kalpana Viswanath is one of the founder of Safetipin, (P) / an app that allows you to report harassment (Q) / and feelings of threat in and around the city (R) / No error (S)?

Option 1 : P

The error lies in part P of the sentence. Therefore, the correct answer is option 1.

Using the phrase One of (noun/ pronoun) often leads to confusion. Some noteworthy points can be helpful:

1. one of is always a singular term.
2. The noun/pronoun which follows one of is in the plural form.
3. In order to take care of the subject-verb agreement, the helping verb that follows should be in singular form (because one of is the subject here)

For example – One of the managers was selected for the promotion. (Correct)

One of the manager was selected for the promotion. (Incorrect – refer point 2)

One of the managers were selected for the promotion. (Incorrect – refer point 3)  

Correct sentence - Kalpana Viswanath is one of the founders of Safetipin, an app that allows you to report harassment and feelings of threat in and around the city.