The maker of the popular game Angry Birds announced on Tuesday that it would open its first overseas operation in Shanghai, ______ a clear step to further enter the booming Chinese market.

A．to mark

B．marking

C．marked

D．having marked

TOM集团在公告中称“确认现时并无有关拟收购或变卖的书面或口头共识或协议”、“确认目前并无任何有关收购或变更的商谈或协议”需要依据上市规则予以公开。 根据这句话判断，TOM集团有关收购的协议( )。

A．目前是不公开的

B．目前是公开的

C．目前不能确认有无

D．确认目前已经有了