Answer: Their view is not going to be changed unless you give them solid information and convince them. They see you as an obstacle to their beliefs.
Explanation:
To deliver a theme to the audience
The sentence in which the underlined infinitive phrase functions as a subject is the last one - to quickly move large groups of people is the purpose of public transportation.
<em>To quickly move </em>is the infinitive phrase, and it is a subject.
