15 Sudden dollops of cash from donors have helped revive dying campaigns.
(A) With donors suddenly withdrawing cash, campaigns have died.
(B) The reviving campaigns have attracted a lot of cash from donors.
(C) Donors have helped revive dying campaigns by reducing their donations.
(D) An amount of unexpected cash from donors has reactivated the campaigns.

Sudden dollops一小團，一小塊 of cash from donors捐血者；器官捐贈者, 捐助者 have helped revive（使）甦醒；（使）復原、復活 dying campaign（尤指政治、商業或軍事的）專門活動，運動. 

(A) With donors suddenly withdrawing撤回, 抽回；取回 cash, campaigns have died. 
(B) The eviving苏醒； 使再生效 campaigns have attracted吸引 a lot of cash from donors. 
(C) Donors have helped revive dying campaigns by reducing their donations捐獻，捐贈，捐助. 
(D) An amount of unexpected cash from donors has reactivate重新起作用；（使）重新啓動 the campaigns. （activate翻譯：啟動，開動；啟動, （尤指透過加熱）加速…的化學）