Could you tell which one (if none, please tell me the good one) is appropriate?<br/><br/><span style="color:rgb(255,0,0);">I used the time unit of minutes.<br/>I used the time unit of minute.<br/>I used the time unit of the minute.<br/>I used the time unit of the minutes.</span><br/><br/>What I want to say is that the data are in <span style="color:rgb(0,0,255);">min</span> rather than <span style="color:rgb(0,0,255);">hr</span> or <span style="color:rgb(0,0,255);">sec</span>.