Trowbridge Corporation has recently switched from storing data on local servers to storing data on the cloud. Now it remains to be seen whether the switch will save Trowbridge Corporation money. It is certain that it will, because it is far more expensive to house and maintain data storage hardware than it is to sign up for cloud-based data storage and pay per annual user, given that the amount of data being stored remains roughly the same.
In the argument above, the two boldfaced portions play which of the following roles?
【选项】
The first gives the conclusion of the argument; the second offers evidence for that conclusion.
选项是否正确？