Concept:A correct sentence places the relative clause directly after the noun it describes, and the main verb comes after the entire subject group.
Explanation:Option B: “The man who met you at the shopping mall is my elder brother” is correct.
It follows the order: Subject (“The man”) + relative clause (“who met you at the shopping mall”) + main verb (“is”) + complement (“my elder brother”).
The clause “who met you at the shopping mall” clearly tells which man we are talking about.
Option A puts the verb “met” after an unnecessary “who” and the object last, making it awkward.
Option C changes the meaning: it says “my elder brother is a man”, which is always true and not the intended meaning.
Option D has the relative pronoun “who” in the wrong place; also “you met” should be “whom you met” because it is the object of the verb “met”.
Answer:B. The man who met you at the shopping mall is my elder brother.