Final answer:
The statement that best aligns with Eliza's thesis about maintaining digestive health is B, which suggests eating smaller, more frequent meals to aid digestion and prevent stomach aches.
Step-by-step explanation:
The statement that best supports Eliza's thesis that a healthy, well-balanced diet aids digestion and stops stomach aches would be: B. Eating smaller, more frequent meals can help food digestion and stop stomach aches. This statement is directly related to the concept of digestive health and offers a practical suggestion for maintaining it. Whereas the other options address specific foods that may cause digestive discomfort but do not directly support the core of Eliza's thesis concerning the general maintenance of a healthy digestive system.