C. I believe just by background knowledge.
Answer: Planning meals to limit high-fat foods and limiting portion sizes
Explanation: When you're obese it does not matter if you eat at a table with family or in front of a tv it does not minimize your portions or change the diet. Using food as a reward is saying "if you do this you get chips" doing that would just make you have something to look forward to if you do something good.
Most children can<span> understand abstract symbols and solve complex problems by the.</span>
