Answer:
The maximum amount of investment interest expense she is allowed to deduct this year is $9,000.
Step-by-step explanation:
An investment interest expense is deductible to the extent of net investment income earned during the year.
$9,000 deductible this year; $5,000 carried forward to next year
Therefore, The maximum amount of investment interest expense she is allowed to deduct this year is $9,000.