单选题 Dust storms most often occur in areas where the ground has little vegetation to protect of the wind.

【正确答案】 C

【答案解析】[分析] 固定搭配。 protect sth．from/against．．．保护；如：He is wearing sunglasses to protect his eyes from the strong sunlight．他戴着太阳镜以挡强烈的阳光。因此选项C是答案。