一道英语阅读理解题Are you still doing the V for victory sign?It’s out

一道英语阅读理解题
Are you still doing the V for victory sign?It’s out.The latest popular hand gesture (手势) is to curl (卷曲) both of your hands and put them together to make a heart-shape.
Known as “hand heart”,many young stars in the US including Justin Bieber,Blake Lively and Taylor Swift have done the move in recent photos.
“The heart-hand gesture means something between ‘I love you’ and ‘thank you’,” said the country singer Taylor Swift,21.“It’s a sweet,simple message which you can send without saying a word.”
Tailor Swift often puts her hands above her head in the heart shape at her concerts.And she is believed to be the first to make the gesture popular.Last month during a charity show,Justin Bieber and his superstar friends did the hand heart and put the photos online.They did it to help out three kids whose parents were killed in a car accident.The gesture became a real hit after that.
“It used to take longer for nonverbal(不用语言的) culture to move.But now,with smart phones and the Internet,it’s much faster,” said Patti Wood,an American language expert.In the Republic of Korea,the hand heart has been popular for a long time,in a different way.People there like making a “bigger heart” by putting their hands above their heads and making a heart shape with their arms.It means:“I love you.”
Which of the following statements is true?
A.Smart phones and the Internet are improving fast.
B.Smart phones and the Internet used to take longer time in use.
C.It’s much easier for nonverbal culture to reach more people.
D.It takes nonverbal culture a long time to become popular.
为什么答案选D而不是C呢?