题目选项分析

This year, our company has moved its call center service team from within the country to an offshore location. Some members of our organization have questioned whether we are providing equal customer service, per dollar of cost, as we did before. We most certainly are, as is indicated by our satisfaction surveys administered at random to people who call the company help line.

In the argument given, the two boldfaced portions play which of the following roles?

【选项】

The first gives the content of the conclusion of the argument; the second provides support for the conclusion of the argument.