结构分析求助！！！

麦兜woo

The soft drink company’s flat earnings for the second quarter reflect the success of both its restructured global bottling system and the extent to which poor currency exchange rates keep down profits for multinationalcompanies



A. reflect both the success of its restructured global bottling system and the extent of poor currency exchange rates keeping

B. reflect both the success of its restructured global bottling system and the extent to which poor currency exchange rates are keeping

C. reflect both the success of its restructured global system and the extent of poor currency exchange rates keeping

D. both reflect the success of its restructured global bottling system and to what extant poor currency exchange rates are keeping

E. both reflect the success of its restructured global bottling system and to what extent poor currency exchange rages are keeping
答案选B，很诧异，我第一个就把B干掉，我理解reflect和are两个位于。不明白这题的结构，求nn指点分析下

sheilabravo

D和E的both明显错，前面只有一个事物
C把BOTTLING去掉了有改变句意思之嫌
A的谓语在哪
结构是(restructured global bottling )system and the extent( to which poor currency exchange rates )are keeping

eshopaholic

main structure is as follows

earnings reflect both the success ..... and the extent......