Refer to the figure given below. What type of device is shown and what input levels are required to turn the LED off?

• The device is an open-collector AND gate and requires both inputs to be HIGH in order to turn the LED off.
• The device is a Schottky AND gate and requires only one low input to turn the LED off.
• The device is an open-collector AND gate and requires only one low input to turn the LED off.
• The device is a Schottky open-collector AND gate and requires a low on both inputs to turn the LED off.