[单选题]Which sentence follows the rule of end focus?( )

AWe have gained the initiative in Northern Manchuria as a result of our work over the past eight months.QrU答案窝(daanwo.com)-大学生作业答案及考资分享平台

BWe have gained the initiative as a result of our work over the past eight months in Northern Manchuria.QrU答案窝(daanwo.com)-大学生作业答案及考资分享平台

CAs a result of our work over the past eight months, we have gained the initiative in Northern Manchuria.QrU答案窝(daanwo.com)-大学生作业答案及考资分享平台