Answer:
a. The US stock market computers were damaged in the 9/11 attacks .
Step-by-step explanation:
This statement is false and it lacks evidence. The New York SE building was not one of the targets of the extremist Islamic terrorists that perpetrated the 9/11 attacks. Hit targets were the World Trade Center and the Pentagon. So, NY Stock Exchange computers were not damaged on 9/11. Also, there is no recorded cyberattack on that day.