The interviewer expects you to go deeper than a yes or no response and to talk about a specific situation where you proved your trustworthiness in the workplace. As they say on their website, "We are passionately committed to serving our clients by delivering together, acting responsibly, realizing the power of our people and trusting the team." The interviewer needs to know that you are a wise choice to represent their company in any capacity. Think about a time you were trusted beyond your typical job duties and describe that situation to your interviewer. Explain why the situation was important, what you learned from it, and how it makes you worthy of Bank of America's trust.