单项选择题

Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Most of the following choices are consumers’ expectation on 3D EXCEPT ______.

A.there will be lighter and more comfortable design
B.there will be glasses-free
C.there will be glasses-free with smaller screens
D.there will be glasses-free with coloful screens