A.I. Explanation:

Option 1: "have about 12 billion neurons and cells in the brain."

Explanation: The text states that a human brain has 86 billion neurons and a rodent brain contains about 12 billion. It does not mention that fruit flies have 12 billion neurons; instead, it specifies that fruit flies have about 200,000 neurons and other cells. Therefore, this option is incorrect as it misrepresents the information.

Option 2: "have more brain cells than rodents."

Explanation: The passage indicates that fruit flies have about 200,000 neurons, while rodents have about 12 billion. This clearly shows that fruit flies do not have more brain cells than rodents, making this option incorrect.

Option 3: "can do more processing than a supercomputer."

Explanation: The text explicitly states that even though insect brains are simple, they can perform a lot of processing, even more than a supercomputer. This directly supports the claim in this option, making it the correct answer.

Option 4: "can't navigate and find food at the same time."

Explanation: The passage mentions that these insects can navigate, find food, and perform other complicated tasks simultaneously. Therefore, this option contradicts the information provided in the text, making it incorrect.