某车间为完成生产任务需开动机床30台，每台开动班次为3班，看管定额为每人看管2台，出勤率为90%，则该工种定员人数为（   ）。

A、<p><span style="font-family: \'Microsoft YaHei\'; font-size: 13px; ">40人</span></p>

B、<p><span style="font-family: \'Microsoft YaHei\'; font-size: 13px; ">50人</span></p>

C、<p><span style="font-family: \'Microsoft YaHei\'; font-size: 13px; ">90人</span></p>

D、<p><span style="font-family: \'Microsoft YaHei\'; font-size: 13px; ">100人</span></p>

A、<p><span style="font-family: 'Microsoft YaHei'; font-size: 13px; ">40人</span></p>

B、<p><span style="font-family: 'Microsoft YaHei'; font-size: 13px; ">50人</span></p>

C、<p><span style="font-family: 'Microsoft YaHei'; font-size: 13px; ">90人</span></p>

D、<p><span style="font-family: 'Microsoft YaHei'; font-size: 13px; ">100人</span></p>