一道英语选择题 （只有一道题）
Apply diluted solution by brush.

a) Use a brush to put the solution on.
b) Dilute the solution by using a brush.
c)Brush the solution until it dilutes.
d) Avoid using a brush with the solution.

最好能说明原因,谢谢
你们都辛苦了，答得都好，可采纳只能一个，就给第一个吧。
感谢朋友们