What Differentiates Slander from Libel

What differentiates slander from libel?

A) Private persons are libeled, whereas public figures are slandered.
B) Slander is oral, whereas libel is written.
C) Slander is intentionally malicious, whereas libel is a report of unverified rumor.
D) Slander causes damage to a person's reputation or standing, whereas libel causes only nuisance.
E) Slander is tried through civil courts, whereas libel is tried through criminal courts.