During unexpected turbulence, what should a flight attendant do with the cart?

When faced with unexpected turbulence, a flight attendant should angle the cart and set the brake to ensure both safety and stability. This action prevents the cart from moving uncontrollably, reducing the risk of injury to passengers, crew, and damage to the cart or cabin area. By angling the cart, it's positioned in a way that minimizes the chances of it rolling or tipping over during turbulence.

Setting the brake further secures the cart in place, providing an added layer of precaution as the airplane experiences sudden movements. This response demonstrates the flight attendant's training in managing in-flight situations safely and effectively, prioritizing the well-being of those on board.

The other options would not be appropriate responses during turbulent conditions and could potentially lead to hazards. Continuing beverage service, for instance, risks spills and injuries. Returning to the galley might not be feasible during severe turbulence, and bracing for impact is more relevant to emergency situations rather than regular turbulence management.