What must you do if wild animals suddenly appear in the full beam of your headlights?

You answered correctly. When wild animals appear in the full beam of your headlights, you must immediately dip your headlights and also sound the horn and brake. Dipping your headlights prevents the animals from becoming blinded and frozen by the bright light, which could cause them to stop in your path. Using the horn and braking alerts the animals and gives you a better chance to avoid a collision. The rule aims to protect both wildlife and road users from accidents in such situations.