need help with 6 and 7

Question 6 (1 point) Which one is the case that cannot lead to price decrease? a) producing substitutes b) producing large amount of one product c) producing two products having linked cost d) producing product sharing the same operation e) producing complements Question 7 (1 point) which one is not true about relationship among price, cost, quantities sold, and profit? a) quantities sold decrease as a price goes up b) fixed cost remains the same regardless of quantities produced O c) profit goes up whenever a price goes up d) variable cost goes up whenever quantities produced increases e) total cost affects a price