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 do some children throw pebbles, sticks or twigs as given in the passage?

• A.  Because they have too many pebbles, sticks and twigs.
• B.  Because they are mischievous.  
• C.  Because the turtle frightens them.
• D.  Because they like to see the turtle go into its shell.