一道高三英语单选关于hold的词组的
China’sstarhurdlerLiuXiangseizedthesilvermedalattheWorldChampionshipswhilehiscompetitorDayronRoblesofCubawasdisqualifiedfor——LiuXiang.
A.holdingupB.holdingdownC.holdingbackD.holdingout最好翻译一下,看不懂.