Final answer:
Before opening his new bakery, Carlos baked sample cupcakes and cookies to sell at local events, which represents the stage of collecting and organizing data in the scientific process of experimentation.
Step-by-step explanation:
This stage of the scientific process of experimentation is known as collecting and organizing data. Before Carlos opened his new bakery, he baked a variety of sample cupcakes and cookies to sell at local farmers markets and other local events. By doing this, Carlos was collecting data on the taste, texture, and presentation of his baked goods, which would help him make informed decisions about what products to sell in his bakery.