Deductions & credits

Thanks for the response. I've been digging through IRS pub 535 "Business Expenses" which repeatedly says "expenses you can deduct"... not "expenses you must deduct". In fact, Section 1 even starts with the question "What Can I Deduct?" (not "What Must I Deduct?").

 

Am I mistaken to think that the word can implies the choice to deduct these expenses?