The Taj Mahal is one of the seven wonders of the world. It is in Agra.
Choose the option that best combines the sentences.

a. The Taj Mahal is one of the seven wonders of the world, is in Agra.
b. The Taj Mahal, one of the seven wonders of the world, is in Agra.
c. The Taj Mahal is one of the seven wonders of the world and it is in Agra.
d. No change

Hint: A noun phrase consists of modifiers and a noun which refers to the name of a person, place, thing or an animal.

Complete answer:
As given in the hint, ‘noun phrases’ are used to function as a noun. Example- A pink house in the dark woods. Here, ‘house, woods’ are the nouns that are modified with the help of the adjectives ‘pink and dark’.
We can use a pronoun in a noun phrase. Example- She is the one with nails.
We can also use noun phrases as a subject, object, indirect object or the object of preposition.
In the given question: We can consider ‘The Taj Mahal’ as the first noun phrase and ‘one of the seven wonders of the word’ as the second noun phrase that is used to modify the first noun phrase.

Now, let’s examine the given options:
> Option a- ‘The Taj Mahal is one of the seven wonders of the world, is in Agra’ is an inappropriate sentence, as it lacks the use of apposition. Hence, it is an incorrect option.
> Option b- ‘The Taj Mahal, one of the seven wonders of the world, is in Agra’ indicates the occurrence of apposition, as we can see two noun phrases placed next to each other. Hence, it is the correct option.
> Option c- ‘The Taj Mahal is one of the seven wonders of the world and it is in Agra’ lacks the use of apposition. Hence, it is an incorrect option.

The correct answer is Option ‘b’.

Note: We place two noun phrases next to each other, so that one of the nouns describes or defines the other noun. This is known as Apposition.