While in a turn, it is best to:

Maintaining a steady speed or gradually accelerating while in a turn is essential for several reasons. When making a turn on a motorcycle, it is crucial to maintain stability and control. Sudden braking can upset the balance of the motorcycle and lead to a loss of traction, making it more difficult to navigate the turn safely.

By keeping a steady speed or gradually accelerating, the rider can help maintain the motorcycle's balance and allow for smoother handling. Accelerating slightly during the turn also helps in counteracting the centrifugal force experienced, ensuring that the tires remain in contact with the road and reducing the chances of skidding.

Looking down at the road can lead to a loss of awareness of your surroundings, which is vital for safe riding, and shifting weight improperly can disrupt stability. Therefore, the best choice in this scenario is to maintain a steady speed or gradually accelerate to ensure optimal control during the turn.