Construction of the cattery could be distilled to eight distinct steps, from the official groundbreaking ceremony to the cutting of the litterbox ribbon. The activities, their durations and predecessors are shown in the table below. Activity OA. 29 OB. 21 O C. 17 OD. 18 ABCDEFGH Predecessors Time (weeks) 10 A ACDB E, F E, F TEGELEN 11 12

Construction of the cattery could be distilled to eight distinct steps; from the official groundbreaking ceremony to the cutting of the litterbox ribbon. The activities, their durations and predecessors are shown in the table below. A. 29 B. 21 C. 17 D. 18