—Hello, this is Lily speaking.Could I speak to Mr. Black?

—…Sorry. He ______ the Xuanwu Lake Park. [ ]

A. has been to

B. went to

C. has gone to

D. will go to

如我出口企业通过独家代理商和国外实际买方达成交易，签订了买卖合同，我出口企业、独家代理商和国外买方都要承担履行合同的责任。