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Therefore, we studied the CD40 pathway in highly purified human monocytes and resting B cells .
 protein: CD40; cell type: resting B cells; cell type: human monocytes
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: CD40, resting B cells, human monocytes 
Answer:
 protein: CD40; cell type: resting B cells; cell type: human monocytes