IDNLearn.com: Your one-stop platform for getting reliable answers to any question. Ask your questions and get detailed, reliable answers from our community of experienced experts.

Tom runs a small business selling electronics online. He buys items in bulk from a supplier at $20 each and sells them individually. If he sells each item for $35, what is his profit margin per item?
A) $5
B) $10
C) $15
D) $20