You are squawking 3671, mode charlie. You receive the following request: 'Golf Bravo Zulu, confirm squawk'. How should you reply?
A
'3671, Golf Bravo Zulu'
B
'3671 with Charlie, Golf Bravo Zulu'
C
'Confirm squawking 3671, Golf Bravo Zulu'
D
'Affirm squawk 3671 with mode charlie, Golf Bravo Zulu'