Part A has an error, hence, option 1 is the correct answer. Key Points 'a lawyer' should be there in place of 'the lawyer' Here, no specific lawyer is being talked about and we used a/an for general reference. If it was 'I met the lawyer who + specification', then 'the' would be used. Hence, 'a' must replace 'the'. Additional Information . The is used to refer to specific or particular nouns; a/an is used to modify non-specific or non-particular nouns. We call 'the' the definite article and 'a/an' the indefinite article. Example: Let's read the book. (I mean a specific book) Let's read a book. (I mean any book rather than a specific book.) Correct Sentence: I met the lawyer this evening on my way to the joggers' park.