You are preparing to lubricate standing rigging on your vessel．When rigging a bosun’s chair on a stay with a shackle，（）.

A. Connect the shackle to the bosun's chair with a hook
B. Never allow the shackle pin to ride on the stay
C. Run the gantline through the shackle and then make fast to the bosun's chair
D. Tie the bitter end of the gantline to the shackle before shackling it to the bosun's chair