Answer :
D. 6 ways
1. Andy, Brenda, Carla
2. Andy, Carla, Brenda
3. Brenda, Carla, Andy
4. Brenda, Andy, Carla
5. Carla, Andy, Brenda
6. Carla, Brenda, Andy
1. Andy, Brenda, Carla
2. Andy, Carla, Brenda
3. Brenda, Carla, Andy
4. Brenda, Andy, Carla
5. Carla, Andy, Brenda
6. Carla, Brenda, Andy
First place can be any one of the 3 competitors. For each of those . . .
Second place can be either one of the 2 remaining. For each of those . . .
Third place is the 1 remaining runner.
Total number of possibilities = (3 x 2 x 1) = 6 .
Here are all the possible ways they can finish:
1). A B C
2). A C B
3). B A C
4). B C A
5). C A B
6). C B A