Three Friends in the U

Three friends in the U.S. want to start a warehousing and distribution business. They each want to be co-owners of the new business with a stake in its profits. The new business will therefore be a corporation, but they need to determine which kind of corporation it should be so that it will best fit their interests in the business.
Which of the following, if true about the owners' plan for the new business, would strengthen the case that it should be registered as an S corporation? (Note: An S corporation in the U.S. is a hybrid of a private corporation and a partnership. It is organized and operates like a corporation, but it is treated like a partnership for tax purposes. To qualify, firms must meet stringent legal conditions.)
They want their shareholders to be personally liable for the corporation's debts.
They want to have an unlimited number of shareholders.
They do not want the company to have to pay corporate income taxes.
They do not want to have to meet any start-up requirements.
They don't want to have a board of directors.