By in the speech the speaker is more likely to accomplish the goal of

The correct answer is:

D) data; changing attitudes, beliefs, or values

The sentence will be as follow:

By including data in the speech the speaker is more likely to accomplish the goal of changing attitudes, beliefs, or values.

apprenticeships are formal, paid, long-term training programs that provide valuable classroom instruction coupled with on-the-job training for skilled, high-paying jobs.