If 'A & B' means 'A is the brother of B', 'A # B' means 'A is the daughter of B', and 'A @ B' means 'A is the wife of B', then how is K related to Z in the following expression?
'Z @ R & T # H @ K'

A

Father

B

Paternal uncle

C

Paternal grandfather

D

Father-in-law