You are given a science question (easy-level) and four answer options (associated with "A", "B", "C", "D"). Your task is to find the correct answer based on scientific facts, knowledge, and reasoning. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D'. There is only one correct answer for each question.

Timber companies can best manage the number of trees in forests by
(A) converting deforested areas into malls. (B) planting trees to replace what they cut down. (C) adding pesticides to the soil around the trees. (D) removing the tree stumps when trees are cut down.
B