For a travel ban against a certain country to succeed, both the American government and the travel industry must work together to prohibit American travelers from being able to travel to the banned country. While the American government has recently prohibited its citizens from traveling to Narvia, many travel agents are continuing to facilitate travel, often by booking circuitous flights to allow Americans to enter Narvia through another country. Therefore, the travel ban against Narvia is unlikely to be successful.Which of the following, if true, most strengthens the argument in the passage above?

About a third of the questions that appear in the GMAT verbal section are critical reasoning questions.Typical questions that appear in critical reasoning (GMAT CR) include strengthening an argument, weakening an argument, identifying the assumption of an argument, mimic the reasoning, identify the reasoning, conclusion, inference, bold faced statements, and evaluating an argument.

Each of the critical reasoning questions is based on a short argument, a set of statements, or a plan of action.