Alphabetize and place commas no duplicate

Question

Choice of toppings: bbq sauce, bacon bits, melted butter, melted cheese, sour cream, green onion chives, tomatoes
ppings- Black beans, jalapeños, lettuce, melted cheese, onions, salsa, sour cream and tomatoes

Answer 1

Here’s the alphabetized list of the unique toppings with commas:

bbq sauce, bacon bits, black beans, garlic, green onion chives, jalapeños, lettuce, melted butter, melted cheese, onions, salsa, sour cream, tomatoes