Choose the option that best substitutes the underlined phrase in the given sentence without changing the meaning of the sentence. But, from the start the pair were mutually antipathetic: she a nagging and ill-tempered woman, he a bully.

Choose the option that best substitutes the underlined phrase in the given sentence without changing the meaning of the sentence. But, from the start the pair were mutually antipathetic: she a nagging and ill-tempered woman, he a bully. Correct Answer Termagant

The correct answer is option 4, i.e., Termagant.

Let's look at the meanings of the words given in the options:

• Obstetrician: The doctor who attends to child delivery
• Chiropodist: The doctor who attends to corns in the feet and hands
• Gynecologist: The doctor who deals with the female reproductive system
• Termagant: A scolding, nagging and bad-tempered woman

Clearly, the word that we're looking for is termagant.