Evaluate Clara’s practices for the prevention of parasite infestation in the following scenario. Last year, Clara lost thousands of dollars when her sheep herd was infested with tapeworms. She has always been diligent about keeping the pens clean and ensuring a proper diet. She has also always given her sheep plenty of freedom by allowing them to wander day and night, and she even protects them from the hot weather by putting them out to graze in the cooler evening hours. She hopes that this year the herd will be more fortunate.