Here is a goal: How to add tomatoes to a guacamole dish?

Which way makes more sense to accomplish this goal?

Select from the following.
(a). While you're mashing the avocado and adding in your seasonings, add in onions and tomatoes and mash it all together;
(b). Once you've mashed the avocado and added your seasonings, add in onions and tomatoes and stir and fold together;
(b).