Choose the correct sentence out of the following :

Sudipta soon realized she was not cut out for PhD.

The correct answer is Option (4) - Sudipta soon realized she was not cut out for PhD.

• "cut out for" is an idiomatic expression that means someone is not suited or qualified for something. In this context, it indicates that Sudipta came to understand that pursuing a PhD was not suitable for her.

OTHER OPTIONS

• Sudipta soon realized she cut PhD down.: This is grammatically incorrect and does not make sense in context.
• Sudipta soon realized she was not cut through fer PhD.: This contains grammatical errors ("cut through fer" is incorrect; "for" should be used instead of "fer").
• Sudipta soon realized PhD cut her up.: This implies that the PhD program harmed or emotionally distressed her, which is not the intended meaning.