Final answer:
The gyroscope in a mobile phone is responsible for redirecting the screen orientation as the user turns their phone from portrait to landscape mode and vice versa.
Step-by-step explanation:
The mobile phone feature that redirects the screen orientation as the user turns their phone is the D. Gyroscope. The gyroscope is a sensor within the phone that detects the orientation of the phone and signals the screen to rotate accordingly. This feature enhances user experience by providing a seamless transition from portrait to landscape mode and vice versa, depending on how the phone is held.