The first Red Scare was a result of the Bolshevik Revolution in Russia in 1917- and this revolution was what brought the communists into power in Russia. The US was scared of other countries also adopting the communist system - and the correct answer is d). The US remains weary of communism until today.
Whichever one interests you more
Answer:
things you want to accomplish ----> Goals
selecting from available options----> decision making
things to help you achieve your goals----> resources
ranking tasks in their order of importance----> Prioritizing