Multi-choice problem: Choose from the options at the end, and answer how do you do this: To make roast pork belly

(a). Set oven to 350 Fahrenheit, Place whole pork belly on tray and add thick salted crust to the top, place in the oven and cook until meat probe says the belly is cooked to 165 Fahrenheit, take out and remove salt crust. Slice thinly and serve.
(b). Open up oven door, Place whole pork belly on tray and add thick salted crust to the top, place tray in the oven and cook until meat probe says the belly is cooked to 165 Fahrenheit, take out and remove salt crust. Slice thinly and serve.
(a).