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.

[Q]: A student notices a paw print while walking in a park. The paw print could be considered a fossil if the print was in ___.  
 (A) rock (B) topsoil (C) thick mud (D) loose sand
[A]: A


[Q]: What is a common use of the mineral graphite?  
 (A) to make glass (B) as a source of iron (C) to make pencil leads (D) as a household cleaner
[A]: C


[Q]: When a spoon hits a table, it makes a loud sound. When the spoon hits a soft cushion, it does not make a sound. What is the difference between the table and the cushion that accounts for the sound?  
 (A) The table is more reactive than the cushion. (B) The table vibrates more than the cushion. (C) The table is more insulated than the cushion. (D) The table has more potential energy than the cushion.
[A]:
B