The correct answer is B) Learning as much as he can about the issue.
Henry is developing a plan of action to resolve a local issue in his community. The action that would be best for Henry to complete first is to "Learning as much as he can about the issue."
Henry should be smart enough to know that if he wants to be of the most help to solve the issue, he needs to first learn all the details of the situation in order to comprehend the problem. If he does that, he will have the tools and generate the kind of alternatives that allow him to take the proper action.