As shown in figure, a big answer, I personally feel some questions are not clear acting APR status is open, for example, thank you bosses (new talent know Posting to integral, yet not many integral, every brother please help the younger brother thank you,)
Option (radio)

Amy polumbo CC can exchange and PCB

P. can CC and SWA each

C.P CC can and SWB each

D.S WA can and SWB