The correct answer is 25 animals. The rabbit is going to the river, so that's 1 rabbit. 6 elephants (not going to the river) each see 2 monkeys going to the river. 6 x 2 = 12, so 12 monkeys are going to the river. If each monkey holds 1 parrot, then there are also 12 parrots going to the river. 1 rabbit + 12 monkeys + 12 parrots = 25 animals.