Answer:
e. None of these.
Explanation:
John's expenses on the trip;
Air fare = $3,200
Lodging = $900
Meals = $800
Entertainment = $600
Of all the expenses incurred by John, only the expense on entertainment is a non-deductible expense. A such,
Total deductible expense = $3,200 + $900 + $800
= $4,900
Hence, the right option is e. None of these.