To answer this question, you need to understand the different types of locks and their features.
Option A) Cipher - This option is incorrect because a cipher lock typically uses a combination of letters or symbols to unlock, rather than a keypad.
Option B) Warded - This option is incorrect because a warded lock is a type of lock that uses a set of wards or obstructions to prevent the wrong key from turning.
Option C) Device - This option is incorrect because "device" is a broad term that can refer to various things, and it does not specifically describe a lock with a keypad for access control.
Option D) Tumbler - This option is correct because a tumbler lock includes a keypad that can be used to control access into areas. The keypad allows users to input a combination of numbers or codes to unlock the lock and gain access.
Therefore, the correct answer is D) Tumbler. This option is correct because it accurately describes a lock that includes a keypad for access control.