Question

Which of these uses a definite article:

a) I went to the USA and met the Obamas.

b) I live in Madrid.

c) I enjoy eating chocolates​

Answer 1

Definite articles are which make the sentence useful. Definite article is word 'the'.

Here, only first sentence uses definite article

a) I went to the USA and met the Obamas.

Hope it helped you dear friend

Answer 2

Answer:

a) I went to the USA and met the Obamas.

Explanation:

The is a definite article is is used for specific thing or person.