Long description

Part (a): It consists of a block having five rows labeled from bottom to top as follows: Segment 0 (4 k), segment 1 (8 k), segment 2 (5 k), segment 3 (8 k), segment 4 (7 k).

Part (b): It consists of a block having six rows labeled from bottom to top as follows: Segment 0 (4 k), segment 7 (5 k), (3 k), segment 2 (5 k), segment 3 (8 k), segment 4 (7 k). The 3 k row is shaded.

Part (c): It consists of a block having seven rows labeled from bottom to top as follows: Segment 0 (4 k), segment 7 (5 k), 3 k, segment 2 (5 k), segment 3 (8 k), segment 5 (4 k), 3 k. The two rows labeled 3 k is shaded.

Part (d): It consists of a block having eight rows labeled from bottom to top as follows: Segment 0 (4 k), segment 7 (5 k), 13 k, segment 2 (5 k), segment 6 (4 k), (4 k), segment 5 (4 k), 3 k. The rows labeled 3 k, 4 k, 3 k are shaded.

Part (e): It consists of a block having six rows labeled from bottom to top as follows: Segment 0 (4 k), segment 7 (5 k), 3 k, segment 2 (5 k), segment 6 (4 k), (4 k), segment 5 (4 k), (10 k). The row labeled 10 k is shaded.