What measures should be adopted to defend our national border? ​

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

i am pretty sure it is d.

answer; the sound of a train whistle makes a woman think of an old friend; //

the smell of grass makes a by feel that spring is the best; (apex);

answer; soren kieregaard was a 19th century danish philosopher;