Here, we want to create a list of possible sandwiches and drinks
From the question, we have the possible sandwiches as;
Turkey
Peanut butter and Jelly
Roast Beef
The drinks are;
Lemonade
Coke
So, for each of the drinks, there are 3 sandwiches type to go along
The possible combinations are thus;
Turkey and Lemonade
Turkey and Coke
Peanut butter and Jelly with Lemonade
Peanut butter and Jelly with coke
Roast Beef and Lemonade
Roast Beef and Coke