Topic: Fill in the Blank,

Best Answer Explained in Below-:

The correct choice, "irreverent," effectively captures the tone and context of the statement regarding the reporter's remarks to the President. "Irreverent" refers to a lack of respect or a playful disregard for authority, which aligns well with the implications of being unwelcome in a formal setting like the White House pressroom. When a reporter makes remarks that are perceived as irreverent, it suggests that they may have crossed a line in terms of decorum, likely criticizing or poking fun at the President in a manner that is deemed inappropriate for the context.

In contrast, the other options—"hospitable," "itinerant," and "enterprising"—fail to convey a sense of disrespect. "Hospitable" implies kindness and warmth, "itinerant" denotes traveling or wandering, and "enterprising" suggests initiative and resourcefulness. None of these terms fit the situation where a reporter’s comments lead to exclusion from a significant press setting. Therefore, "irreverent" is the most appropriate choice, as it encapsulates the idea of making bold, disrespectful statements that could result in severe repercussions for a journalist in a high-stakes political environment.