C:those in department stores, do very little impulse shopping, do not buy a pair of skis and a boomerang when they come in for a basketball, but leave with only a basketball
vote for D. do very little impulse shopping 和 do not buy a pair of skis and a boomerang when they come in for a basketball, but leave with only a basketball 不是并列关系,后者是前者的具体例子。D明确地表达了这层关系。C却混淆了。
D. those in department stores, do very little impulse shopping; someone who comes in for a basketball will leave with a basketball only and not buy a pair of skis and a boomerang as well