Cost Effective Grocery Shopping

Question: Natalie is at the grocery store. On her list she has 3 items: sliced bread, milk, and toilet paper. A loaf of whole wheat bread is $3.50. A loaf of rye bread is $4.00 with a 10% coupon on it. A loaf of pumpernickel bread is $3.75 with a 20% sale. Natalie is lactose intolerant. A half gallon of Almond milk is $4.00. A quart of coconut milk is $2.40 and Natalie has a $1.00 off coupon for the coconut milk. A gallon of soy milk is $6.50. Store brand toilet paper has 8 rolls with 120 sheets each for $10.00. Angel Soft toilet paper has 6 rolls with 150 sheets each for $9.50. Charmin toilet paper has 4 rolls with 180 sheets each for $9.00. What would be the three most cost effective items for Natalie to buy?