Given the task definition and input, reply with output. In this task you are given a small conversation between two persons and 4 options on how the conversation should continue. Your job is to choose the most reasonable option. The conversation and the options are separated by a newline character. Each dialogue in the conversation are separated by a comma. F and M indicate female and male, respectively.

M: Most of the world's rainforests are in danger. They are disappearing at a high rate. ,F: Yeah, many plants and animals exist only in rainforests.
(A) M: I'm sorry, I don't understand. Could you say it again? (B) M: Although many animals live in the rainforest, fortunately the rainforest is still safe. Let's talk about animals. (C) M: Since many plants not only live in the rainforest, we can continue to talk about plants. (D) M: Although there are many animals and plants in the rainforest, it is good that the rainforest is still in a safe period.
A