Which of the following features of a smartphone controls the screen orientation?

A gyroscope is a sensor that measures angular velocity and helps determine the orientation and rotation of the device. This information is primarily used by the operating system to automatically adjust the screen orientation (portrait or landscape) as the phone is tilted or rotated.

NFC (Near Field Communication) is a wireless technology used for short-range communication, typically for payments or data transfer, and has no role in screen orientation.

An accelerometer measures linear acceleration and detects changes in motion or tilt, but it is the gyroscope that specifically handles rotational motion and accurate orientation detection for screen rotation.

GPS (Global Positioning System) is used for determining the device's geographical location and has no function related to screen orientation.