Answer: Option (B) is the correct answer.
Step-by-step explanation:
Paper is one of the many materials that is manufactured from trees. It requires many years to convert a plant into tree. Therefore, each time we waste a paper it means we are wasting some part of a tree.
Hence, it is good to use recycled paper in order to avoid wastage of paper.
Public transportation will release pollution that will harm the environment. As a result, plants will also get affected.
Electronic devices are not made using trees so, they do not help in saving trees.
Therefore, we can conclude that out of the given options buying recycled paper can help save trees.