Answer:
D. The
Explanation:
Definite article ‘The’ is used to introduce a noun phrase or it preceeds noun when the listener already knows what the speaker is referring to . Definite article also indicates the things that has been already mentioned or is acknowledged commonly.
Some of the uses of definite article ‘the’ are:
1. To refer something that has been already mentioned.
2. It is used in a sentence or a clause where particular object or person is identified.
3. To refer to the unique person or object.