Final answer:
Electronic Warfare (EW) concerns radiated energy and is a true statement.
Step-by-step explanation:
The correct statement about Electronic Warfare (EW) and Computer Network Operations (CNO) is option a. EW concerns radiated energy.
Electronic Warfare (EW) refers to any action involving the use of the electromagnetic spectrum or directed energy to control the spectrum, attack an enemy, or impede enemy use of the spectrum. It involves the use of radiated energy, such as radar, jamming systems, and electronic countermeasures.
On the other hand, Computer Network Operations (CNO) refer to actions taken to gain access to or control a computer network for defensive or offensive purposes. CNO does not primarily deal with radiated energy like EW does.