Multi-choice problem: Continue writing the next sentence in this paragraph:

How to make scalloped potatoes and ham
Preheat the oven to 350 f (177 c) and grease a 2-quart (2 liters) casserole dish with cooking spray.
Melt the butter in a large saucepan over medium heat, then add the onion and cook for 2 minutes.
Stir the onion occasionally to help it cook evenly.

[-] You don't want to boil the onion, as the butter will melt and cook unevenly. Add the bacon and cook them for 1-2 minutes longer, stirring occasionally. [-] You'll get 40% cooking time if you slow it down! Chop the onions and ham together and set aside. Cut the cream cheese and lemon zest into quarters lengthwise and set aside. [-] Add the remaining 1 cup (100 g) of boneless scallop. Stir it constantly as it cooks, remembering that it's about 10 mins. [-] You will be ready for the next step when the onion turns tender. Whisk in the flour, salt, and pepper and cook until it turns smooth and bubbly.
You will be ready for the next step when the onion turns tender. Whisk in the flour, salt, and pepper and cook until it turns smooth and bubbly.