Learning to do routine car maintenance oneself is often easier _____ competent people to do it.A. as finding B. than finding C. than to find D. as to find

步骤 1：分析句子结构
句子的主干是 "Learning to do routine car maintenance oneself is often easier _____ competent people to do it."，其中 "Learning to do routine car maintenance oneself" 是主语，"is often easier" 是谓语，"_____ competent people to do it" 是比较对象。
步骤 2：确定比较结构
根据句子的含义，这里需要一个比较结构，表示 "自己做常规汽车维护比找有能力的人做更容易"。比较结构通常使用 "than"。
步骤 3：选择正确的比较对象
比较对象是 "competent people to do it"，需要一个动名词形式来与 "Learning to do routine car maintenance oneself" 对比。因此，"finding" 是正确的比较对象。