Definition: In this task you will be given a question and a passage. You need to determine if the answer to the question is contained in the passage. If the answer can be found in the passage you should output 'True'. If the answer cannot be found in the passage you should output 'False'.
Input: Passage: 'As of December 31, 2016, the company held 10.73% of all bank deposits in the United States. It is one of the Big Four banks in the United States, along with Citigroup, JPMorgan Chase and Wells Fargo -- its main competitors. Bank of America operates -- but does not necessarily maintain retail branches -- in all 50 states of the United States, the District of Columbia and more than 40 other countries. It has a retail banking footprint that serves approximately 46 million consumer and small business relationships at 4,600 banking centers and 15,900 automated teller machines (ATMs).'. Question: 'how many bank of america branches in usa'.

True