简述FOB价格条件下买卖双方的主要责任。

A: Excuse me, is there a parking lot anywhere around here
B: ().

A. Sorry, there is no park around here.

B. Yes, you’ve asked the right person. I’m very familiar with this place.

C. No problem. I know where it is.

D. Yes, there’s one near the end of the street. It’s behind the church.