It's said that it's thanks to so many commom understandings_____.It's said that it's thanks to so many commom understandings_____they signed an agreement on peaceful development.Awhy Bthat Cso Dwhich为什么选B,而不选其他?请详细说明并翻

It's said that it's thanks to so many commom understandings_____.It's said that it's thanks to so many commom understandings_____they signed an agreement on peaceful development.Awhy Bthat Cso Dwhich为什么选B,而不选其他?请详细说明并翻
It's said that it's thanks to so many commom understandings_____.
It's said that it's thanks to so many commom understandings_____they signed an agreement on peaceful development.
Awhy Bthat Cso Dwhich
为什么选B,而不选其他?请详细说明并翻译一下这个句子.

It's said that it's thanks to so many commom understandings_____.It's said that it's thanks to so many commom understandings_____they signed an agreement on peaceful development.Awhy Bthat Cso Dwhich为什么选B,而不选其他?请详细说明并翻
so that 结构 相当于因为 才 .意思是有共识 才签约