Ransomware, as the name may imply (ransom). Think of it like a hostage situation. Someone rich gets kidnapped (user), the kidnapper (threat) would want a ransom.
C. Sandstone and Basalt make a metamorphic rock.
I would say it will defitley be either B or D, what have you been reading about or doing before this? If you were reading about how healthy they are it would be D, but if you were reading how they are being destroyed it would be B
<span>A. Ocean currents, is the only logical answer this question I mean come on I know for a fact I'm correct</span>