Answer: It upheld the Sherman Antitrust Act's authority over railroads
Explanation:
They have a longer wave length but a lower frequency
Answer:
He must notify Security Manager.
Explanation:
As the email received by Sam contains confidential content information, he must notify the Security Manager immediately, so that possible flaws in the security system can be investigated quickly and effectively, in addition, Security Manager is the professional capable of analyzing and determine the reason for sending that email, who sent it and what the landlords should do to avoid this type of problem.
