Final answer:
Maurice and Stanley would most likely form a corporation in order to raise capital and maintain limited liability for their train store.
Step-by-step explanation:
Maurice and Stanley would most likely form a corporation in order to raise the capital needed for expansion while still maintaining limited liability. A corporation is a separate legal entity from its owners and offers limited liability protection. This means that Maurice and Stanley's personal assets would be protected in the event that the business loses money or faces legal liabilities. Additionally, a corporation can raise more capital by selling shares to investors, which can help fund expansion into other cities.