Which of the following is a breach offiduciary duty?

1. All of the options provided are correct
2. A broker recommends to his client that he buy shares of a company without telling the client that he (the broker) is being paid by the company to promote it.
3. A broker recommends to his client that he buy shares of a company without telling the client that he (the broker) owns shares in that company.
4. A broker recommends to his client that he use a particular lending institution to finance the purchase without telling the client that he (the broker)gets referrals from the institution in return.