Final answer:
Ernest bought 4 apples from the local farmers market, which is the correct number according to the statement provided.
Step-by-step explanation:
The number of apples that Ernest bought from his local farmers market is 4. This is a straightforward question checking the ability to read and understand a simple statement. The other numbers mentioned such as 16, 20, and 8 are there to test if the student can identify the correct information amidst potential distractors. Certainly! The question states that Ernest bought 4 apples. When you see a statement like "Ernest bought 4 apples," the number specified in the statement is the answer to the question.