P. J. is writing the conclusion of his argumentative essay about the value of volunteering overseas. The conclusion he wrote is below. In conclusion, volunteering overseas is a cheap way to travel.

How can P. J. best revise his conclusion to call his readers to action?

Volunteering overseas is a unique way to see the world and help others. Don’t worry about the cost; prices are often reasonable.
Volunteering overseas is a unique way to see the world and help others. Which foreign country would you most like to visit?
Volunteering overseas is a unique way to see the world and help others. It is helpful if you already speak a foreign language.
Volunteering overseas is a unique way to see the world and help others. Set a goal today to make your next trip a service vacation.