During 2021, Trevor has the following capital transactions: LTCG $ 6,000 Long-term collectible gain 2,000 STCG 4,000 STCL 10,000 After the netting process, the following results:

a. Long-term collectible gain of $2,000.

b. LTCG of $6,000, long-term collectible gain of $2,000, and a STCL of $6,000.

c. LTCG of $6,000, long-term collectible gain of $2,000, and a STCL carryover to 2022 of $3,000.

d. LTCG of $2,000.