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A. chest pain is the correct answer
He or she may have a smokers cough which is caused by smoking for a very long time and makes it very difficult to breath and uses alot of energy.
The answer is nuts, red meat and legumes.
Legumes are foods such as beans, lentils, chickpeas, peas and soybeans.
Red meats such a beef are rich in iron.
Nuts such as pistachios, almonds and cashews.