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. The tiger was the only one (A) / about the prowl (B) / among all other animals (C) / No error. (D)?

Option 2 : B

The error lies in part B of the sentence. Hence, the answer is option 2.

The phrase 'on the prowl' means 'to look around carefully in search of prey'. In this context, it refers to the idea that the tiger was the only one among all animals, who was on the lookout for its prey. However, part (B) of the sentence uses the preposition 'about' instead of 'on', hence it is incorrect. The correct format of the phrase is 'on the prowl'. 

Thus, the correct sentence is, 'The tiger was the only one on the prowl among all other animals'.