$($###$7)$No chat gpt answers & don't copy from chegg or else I'll give $5$ downvotes

A company, Sunshine Enterprises, incurs the following expenses during the tax year:

Office rent: $$15,000$

Employee salaries: $$80,000$

Marketing campaign: $$20,000$

Donation to a local charity $$3,000$

Legal fees related to a patent dispute: $$12,000$

Which of these expenses would likely qualify as tax$-$deductible ordinary and necessary business expenses?