Number 1B is giving me issues

1. At a sub shop, there are 4 bread choices, 5 meat choices, 3 meat choices. a. Assuming you have to choose exactly one bread, one meat, and one cheese, how many options are there? The possible options are 60. 4 x 5x 3=60 b. If they have one sauce and you can choose yes or no to sauce on any sub combination, how many sub options are there