Long description

All the three parts consist of a block having 16 rows.

Part (a): The row entries from top to bottom are as follows: A0, A1, A2, A3, A4, A5, B0, B1, B2, B3, B4, B5, B6, C1, C2, and C3. The ages of the rows are labeled as follows: 10, 7, 5, 4, 6, 3, 9, 4, 6, 2, 5, 6, 12, 3, 5, 6.

Part (b): The row entries from top to bottom are labeled as follows: A0, A1, A2, A3, A4, A6, B0, B1, B2, B3, B4, B5, B6, C1, C2, and C3. Row A3 is circled.

Part (c): The row entries from top to bottom are labeled as follows: A0, A1, A2, A3, A4, A5, B0, B1, B2, A6, B4, B5, B6, C1, C2, and C3. Row A6 is circled.