Question

Fill in the blank with the most appropriate word.
People ________ study the weather are called meteorologists.

• A. that
• B. when
• C. whom
• D. whose

Answer 1

The correct option is A that

Relative pronouns have two functions- Like other pronouns they stand for a noun or pronoun placed before them and like conjunctions they join subclauses with main clause and start the adjective clause.

In the given sentence the subject is 'people'.

"Who" is always used to set up a relative clause that describes a person, while "that" is used to describe an object or another non-human being.

"Whose" is the possessive form of "who".

'Whom' is the objective form of 'who' and must be used to refer to the object of a verb or preposition.

'When' is sometimes used as a relative clause to indicate time.

When describing objects and non-human beings, "that" is used to introduce a defining relative clause.

Thus option A is the correct answer.

Options B,C,D are incorrect.