【名词&注释】
思想品德课教学(teaching of moral courses)、操作条件反射(operate conditioned reflex)、纪念日(thanniversary)、校外活动、星期五(friday)、休息日(day off)、历史博物馆(history museum)
[单选题]张、王、李、赵、钱、孙、陈七人每个星期都只有一个休息日(day off),而且每天只能安排一人休息,已知张的休息日(day off)比李的晚一天,赵的休息日(day off)比钱的晚两天,王的休息日(day off)比陈的早三天,孙的休息日(day off)是星期四,而且恰好处于王和李休息日(day off)的中间。根据以上陈述,可以得出( )。
A. 钱的休息日(day off)是星期三
B. 赵的休息日(day off)是星期五
C. 王的休息日(day off)是星期三
D. 李的休息日(day off)是星期六