Answer:
4. To persuade
Step-by-step explanation:
In this excerpt, Otis's purpose is most likely to persuade. Otis tells us that no person should be able to take another person's property without their consent. He believes this is what happens with the taxes the British take from the colonists. As the colonists have not been able to vote for the British representatives, this means that they have not consented. Otis wants to persuade the audience that this is an unfair situation.