In relation to the dollar amount of sales. which of the following cost classifications is appropriate for advertising and salessalaries costs?
考虑到销售额，下列哪一个对广告费和销售人员工资的成本分类是恰当的？
2
Ad sales cover the site's expenses, including the salaries of two full-time employees.
目前该网站的广告销售收入已经足以抵补开支，包括给两名全职员工支付薪水。
3
From sales managers and graphic designers to college professors and training consultants, there are plenty of rewarding, angst-less jobs out there that come with generous salaries.