Your client is looking to start a plumbing and heating business and is looking for advice on how to structure this new business entity. He will be the only employee and plans to purchase a van and basic tools to get started. What questions do you need to ask, and what are the major considerations that the client should make with respect to tax, ease of operation, future additional owners, and liability protection? Be sure to include which business form you would recommend (sole proprietorship, partnership, LLC, or corporation) and why you recommend this option as part of your answer.