Today was samantha's birthday, and her friends were taking her out for a surprise evening. it was hard enough to pay attention to speeches on a hot afternoon, but samantha's mind kept wandering to what her friends might be planning—and who might be coming. according to your textbook, the most important cause of samantha's poor listening was

The most important cause of Samantha's poor listening was "not concentrating".

The four fundamental drivers of poor listening are, not concentrating, "spare brain time", listening too hard and missing the principle details elements and points, making a hasty judgment, and concentrating on conveyance and personal appearance. In this case Samantha is the victim of “not concentrating” as she is thinking about her birthday party activities.

i looked up you question and i found this on quizlet i hope this is one of your answer choices.

modern american cars are not available due to trade restrictions

answer; allows decision to stand;