What should always be released after you shift into gear, before you remove your foot from the brake pedal?

When you shift into gear, it is essential to release the parking brake before removing your foot from the brake pedal. The parking brake is designed to prevent your vehicle from rolling when it's parked, and it should only be engaged when the vehicle is stationary or parked. If the parking brake is not released after shifting into gear, it can create unnecessary strain on the vehicle's braking system and transmission, potentially leading to mechanical issues, and can also hinder your ability to move safely.

In contrast, the emergency brake is often synonymous with the parking brake, making it somewhat redundant in this context. The acceleration and clutch pedals are not relevant to the act of preparing the vehicle to move after shifting into gear, as the focus should be on ensuring that the vehicle is free to roll without any restrictions from the brake systems.