Joint ownership means that two or more co-owners enjoy the same rights and assume equal responsibilities and obligations for the same property. According to the above definition, which of the following situations is jointly owned? (). ['A millionaire made a will before his death, stating that all his savings and real estate were discounted, and were equally distributed to his two sons, each of whom enjoyed half the right to inherit the property.', 'Students of a university should live in six people per dormitory according to regulations. Due to the number of people, there are only three people in the last dormitory. Finally, the school assigned a water dispenser to each dormitory. One.', 'A venture capitalist invests in a developing small business and states that the company will implement a shareholding system in the future, and the chairman of the company owns 30% of the shares, and the venture capitalist holds 70% of the shares.', 'wo people started a company in partnership, one is in charge of operation and the other is in charge of development, but before the partnership, they stated in written and fair form that the two people jointly owned the company, but once the bankruptcy owed debts, the person in charge of development was not responsible Debt repayment.']