Question: How to cut wooden planks.

  Options: 
 A. First, use a ruler and a pencil to mark off where you would like to make the cuts on the wood. Then, using a mitre saw, cut off the wood where the pencil marks are located.
 B. First, use a string and a pencil to mark off where you would like to make the cuts on the wood. Then, using a mitre saw, cut off the wood where the pencil marks are located.
Answer: A