Each question consists of a sentence which is divided into four parts. Only one part in each sentence is not acceptable in standard written English Identify that part which contains an error.

Correct option is D

Option (d) contains an error.
· Explanation: When comparing two persons, the comparative degree ( more intelligent) should be used instead of the superlative degree ( most intelligent).
· Correct sentence: My observation is that between Sudhakar and Shashi, Shashi is the more intelligent.
Grammatical rule used: Use the comparative degree when comparing two entities.
· Explanation in Hindi: जब दो व्यक्तियों की तुलना की जाती है, तो तुलना के लिए comparative degree का उपयोग किया जाता है।