The nurse in "to nurse the baby" experienced the conversion from

The nurse in "to nurse the baby" experienced the conversion from nouns to（）
A、nouns
B、verbs
C、adjectives
D、adverbs
【正确答案】：B
【题目解析】：”护士“一词”在"护理婴儿”这个短语中经历了从名词向动词的转换。