Answer: d. Juan cannot deduct any vehicle expenses because he has no record of his expenses
Explanation:
A sole proprietorship is a form of business that is owned and controlled by one person.The person enjoys the profit alone and bears the risk alone as well.
Since we are given the information that he keeps no records of any kind regarding his business use of the car and doesn't really know for certain when and where he used the automobile for business, this means that Juan cannot deduct any vehicle expenses because he has no record of his expenses.
We should note that for a deduction to be made, the details of how the vehicle is used for business purposes would be required. Since he doesn't have it, he can't deduct any vehicle expenses.