Answer:
Investigating a data breach
Explanation:
A data breach usually involves data exfiltration over a computer network. the other options involve data being stored on a device locally which isn't volatile data like text messages, photos or rearranging data in defragmentation all of which does not require a network.
0s to 15s: constant speed/zero acceleration
15s to 40s: constant gradient, therefore constant deceleration
The change is called melting
