Read the following passage carefully and answer the question that follow, by selecting the correct corresponding option. Do you know why a turtle goes into its shell? It does so when it is frightened. The shell is hard so it will protect the turtle. The turtle will not be hurt even when mischievous boys throw sticks, pebbles and twigs at it. Why does the turtle go into its shell?

• A.  Because it is afraid          
• B.  Because it is warm
• C.  Because it is comfortable  
• D.  Because it lives in water