The best and most correct answer among the choices provided by the question is the first choice "It helped unite colonists from varying areas and backgrounds under a common cause and idea."
Evangelicalism Evangelical Christianity, or Evangelical Protestantism is a worldwide, ... impulse or purpose. For example, the Times Literary Supplement refers to "the rise and fall of evangelical fervor within the Socialist movement".
I hope my answer has come to your help. God bless and have a nice day ahead!