You advise your grandmother against using mineral oil as a laxative because

The human body, as you may know, requires vitamins and minerals to be healthy.  Also, laxatives can be more hurtful than helpful sometimes.  So, it is important for everyone, especially older people, to be careful with laxatives and be very aware of their uses, side effects, and interactions.  Mineral oils will cause everything to be passed/excreted.  This includes fat soluble vitamins.  Thus, it would be quite advisable to let your grandmother know that even though mineral oils might help with constipation, there will be side effects—side effects that may do more harm than good.  

banquo is a great foil

i would say c, admiration because the narrator related to the main character and she, too, once felt ashamed about her culture and wished to be an american girl to impress a boy. she felt admiration because her mom prepared her favorite foods when her and robert's (the guy she liked) family all came together and had a family reunion.