Respuesta :
Answer:
The best way to rewrite the sentence to avoid repetition is Selena had a surprise when she attempted to duplicate a dish she learned in culinary school.
Explanation:
The original sentence "Selena had an unexpected surprise when she attempted to duplicate a copy of a culinary dish she learned in culinary school." has a lot of unnecessary information and repetitive nouns, for example, duplicate and copy are redundant, the same happens with unexpected and surprise, and it is not necessary to say culinary dish besides it has the words culinary school.