Because it was done that way to spread fear and send a message.
It wasn't simply murder, it was a statement.
Answer:
The National Defense Education Act of 1958 became one of the most successful legislative initiatives in higher education. It established the legitimacy of federal funding of higher education and made substantial funds available for low-cost student loans, boosting public and private colleges and universities.
Ballistic Missiles were not invented until 1936 so the answer is A