[ Relative Clause ]
The boy is Jane’s brother . He sat beside you at the party last night.
A. The boy is Jane’s brother who sat beside you at the party last night.
B. The boy who sat beside you at the party last night is Jane’s brother.
C. The boy whom sat beside you at the party last night is Jane’s brother.
D. The boy whose sat beside you at the party last night is Jane’s brother.

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