In the last sentence, the word "bust" most probably means ______.

A
解析：应该正确理解出现本词汇的最后一个句子“A few even accepted commissions to make busts of prominent citizens.”B选项的意思为“自画像”，和C以及D的意思与句子的语境意义不符。本句话的意思为“一部分木雕师甚至接受任务给名人做上半身塑像”。