Final answer:
The supporting detail suggests that food companies believe selling food to kids is important.
Step-by-step explanation:
The supporting detail 'Food companies spend more money than ever to advertise to kids' most likely supports the main idea that food companies think selling food to kids is important. By spending more money on advertising, it can be inferred that these companies believe that targeting kids is a lucrative market and that they prioritize selling their products to this demographic. The supporting detail does not directly suggest that food companies advertise only unhealthy foods or that kids should ignore advertisements for foods. It also does not provide information about kids' television viewing habits.
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