【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. ...
A.
advantages: 1, 2, 3, 8 Disadvantages: 4, 5, 6, 7
B.
advantages: 1,2,3,4 disadvantages: 5,6,7,8
C.
advantages: 2, 3, 4, 5 disadvantages:1, 6, 7, 8
D.
advantages: 2, 3, 5, 7 disadvantages: 1, 4, 6, 8