Teacher: You are given a science question (hard-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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Which event can cause a large rock to become soil over time?
(A) decaying (B) an earthquake (C) a landslide (D) weathering
Solution: D
Reason: Under the action of heat, cold, rain, wind, and other atmospheric factors, the rock breaks down physically into small fragments that become the parent material of the soil. Also, atmospheric factors change according to weather.

Now, solve this instance: Michael has a pencil case made of pine wood. The surface of the pencil case scratches and dents easily. He wants to make a new pencil case that will not scratch or dent easily. Which of the following should Michael do to make a new pencil case that will not scratch or dent easily?
(A) make the pencil case a different size (B) use a different material to make the pencil case (C) make the pencil case from another piece of pine wood (D) use a thicker piece of pine wood to make the pencil case
Student:
B