选出每组中不属于同一类别的词。请将正确答案的标号写在题前的括号内。（共5小题；每小题1分，满分5分）
A. coat              B. dress               C. banana
A. farmer            B. nurse               C. guitar
A. March             B. Monday              C. October
A. thirsty            B. fifty               C. thirty
A. jump              B. play                C. football