on one's behalf “为......的利益，代表......”, on one's account "为了......", in one's interest “让......感兴趣，符合....的利益”，for one's part“就....来说”。根据原句里的represent判断，选“代表”B才能补全整句。
on one's behalf “为......的利益，代表......”, on one's account "为了......", in one's interest “让......感兴趣，符合....的利益”，for one's part“就....来说”。根据原句里的represent判断，选“代表”B才能补全整句。
