Answer:8. A. lemon juice(Lemon juice, being acidic, helps break down proteins and makes food more tender.)9. D. softens foods for flavor absorption(Acidic ingredients like lemon juice or vinegar help tenderize the food and allow flavors to penetrate better.)10. C. the meat should be firm but tender when you touch it(Properly marinated meat should feel firm but tender, not mushy, slimy, or sticky.)