【单选题】Read the essay below, then put the ideas into two groups: advantages and disadvantages.1. sometimes people think they are talking online to someone friendly, but it might be a dangerous stranger.2. So...
A.
advantages: 1,2,3,4 disadvanges: 5,6,7,8
B.
advantages: 2, 3, 4, 5 disadvanges:1, 6, 7, 8
C.
advantages: 2, 3, 5, 7 disadvanges: 1, 4, 6, 8
D.
advantages: 1, 2, 3, 8 disadvanges: 4, 5, 6, 7