Answer:
c. $18,000 in the common and $2,000 in the preferred.
Step-by-step explanation:
Carrie's total basis on her investment hasn't changed and it remains at $20,000, what has changed is how that basis is distributed.
Since the current value of common stock + preferred stock = $72,000 + $8,000 = $80,000:
- Carrie's basis in preferred stock = ($8,000 / $80,000) x $20,000 = $2,000
- Carrie's basis in common stock = ($72,000 / $80,000) x $20,000 = $18,000