I was advised to arrange for insurance ________ I needed medical

I was advised to arrange for insurance ________ I needed medical treatment.
A、nevertheless
B、although
C、in case
D、so that
【正确答案】：C
【题目解析】：A和B都有“虽然”的意思,与题意不符。in case意为“以防万一”,符合题意。