What is the primary difference between Available-for-Sale (AFS) securities and trading securities?

AFS securities are held to maturity without sale, and unrealized gains or losses are recorded in other comprehensive income.

AFS securities are actively traded for profit, and unrealized gains or losses are recorded in net income.

AFS securities are intended to be sold and actively traded, and unrealized gains or losses are recorded in net income.

AFS securities are intended to be sold but not actively traded, and unrealized gains go to comprehensive income.