After the robbery, the shop installed a sophisticated alarm syst

After the robbery, the shop installed a sophisticated alarm system as an insurance ( ) further losses.
A、against
B、towards
C、from
D、for
【正确答案】：A
【题目解析】：against 为了避免损失“投保”，句子含义是失窃后，这个商店为了避免损失，安装了复杂的报警系统确保安全。