The product that is advertised during two of the weeks is advertised during week 4 but is not advertised during week 3
G is not advertised during a given week unless either J or else O is also advertised that week.
K is advertised during one of the first two weeks
O is one of the products advertised during week 3
18. Which one of the following could be the schedule of advertisernents?
(A) week 1: G, J; week 2: K, L; week 3: O, M; week 4: H, L
(B) week 1: H, K; week 2: J, G; week 3: O, L; week 4: M, K
(C) week 1: H, K; week 2: J, M; week 3: O, L; week 4: G, M
(D) week 1: H, L; week 2: J, M; week 3: O, G; week 4: K, L
(E) week 1: K, M; week 2: H, J; week 3: O, G; week 4: L, M
19. Which one of the following is a pair of products that CANNOT be advertised during the same week as each other?
(A) H and k