Which of the following structures reflects parallel structure?

Group of answer choices

Last week, Isabel started a cooking class, which includes instruction in baking, frying, and how to make candy.

Last week, Isabel started a cooking class, which includes instruction in how to bake, frying, and candy-making.

Last week, Isabel started a cooking class, which includes instruction in baking, frying, and candy-making.

Last week, Isabel started a cooking class, which includes instruction in baking, how to fry, and to make candy.