Which of the following is a function of an ATM?

An ATM, or Automated Teller Machine, is primarily designed to provide customers with basic banking functions without the need for human interaction. One of the most common services offered by ATMs is the ability to check account balances. This function allows users to quickly access information about how much money is available in their accounts, which is crucial for managing personal finances and ensuring that transactions such as withdrawals or purchases can be completed without overdrawing the account.

While ATMs can perform a variety of functions such as dispensing cash, allowing deposits, and transferring funds between accounts, checking account balances is one of the foundational services provided. Other options like providing loans directly or facilitating online shopping fall outside the scope of ATM capabilities, and while currency exchange may be offered at specific ATMs, it is not a standard function of all ATMs. Thus, the correct answer highlights one of the primary and widely recognized functions of ATMs in the banking industry.