What type of building is a bank?
Options:
- main street
- secure place
- pool of currency
- financial center
- grocery store
Please answer and provide answer explanation.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Financial Centre has many Financial Service institutions. Bank is a financial service institution. The final answer: financial center.