Sally made a chart to show the results of a survey. She asked her friends about the importance of some inventions. Look at the pie chart and answer the question below.



Which of the following is NOT true according to the chart above?

A) The invention of smart phones is more interesting than others.
B) A few students find the invention of tyre very important.
C) 20% students think the cars are important achievement.
D) Most of students pay attention to the invention of radios.