Which option represents the key for locking EZ Teller?

• A. Speed key 9
• B. Speed key for security code
• C. Number 9 used for lock EZ Teller
• D. Speed key to lock EZ Teller

Answer: (D)

The essential idea is recognizing the exact action and mechanism used to secure EZ Teller. Using the speed key that is designated to lock EZ Teller clearly states both how to perform the action (a speed key) and what happens (lock EZ Teller). This direct pairing avoids ambiguity about what will occur and how to trigger it. Other phrasings either imply a different function (such as using a security code) or are vague about the action, which could lead to delays or mistakes in locking the device. So the wording that specifies the speed key to lock EZ Teller is the best because it unambiguously describes the exact operation.