3 Over the next few weeks, Joshua and Dong Soo became great friends and did almost everything together. Because the young men were so drastically different, their friendship surprised some people. Joshua was sociable; he loved cracking jokes and playing tricks. Dong Soo, however, was quiet and calm. He thought for a long time before speaking.
In paragraph 3, the word drastically means

A) knowingly.
B) effectively.
C) significantly.
D) intentionally.