A.
there is no doubt that.这是个固定搭配：“毫无疑问.”
deserve to ...汉译：”值得.“
此句意译：她做的很好了,毫无疑问肯定会赢得比赛.
B项：没可能
C项：没证据没理由
D项：难怪,相比较A项适合
给分,ok.thank you foryour help.But i should say you need to say "thank.thank."(chiglish)firstly,then"marks,marks"