Answer: b) a capital gain due to the contribution of $6,000 and a zero basis in the partnership interest.
Step-by-step explanation:
Since we are informed that Carol has 30% interest in partnership capital, profits, and losses and also contributes a machine with a basis of $40,000 and an FMV of $80,000 and the partnership assumes a $70,000 recourse liability on the machine.
Therefore, her capital gain will be:
= 30% × $20,000
= 0.3 × $20,000
= $6,000
Therefore, there will be a capital gain due to the contribution of $6,000 and a zero basis in the partnership interest.