The picture shows a sequence of events. Balloon 1 is tied to a string and balloon 2 is tied to a string.
Next, balloon 1 is rubbed with a wool cloth.
Then, balloon 2 is rubbed with a different wool cloth.
Balloon 2 is moved near balloon 1.
An inflated balloon plus a woolen cloth. Another inflated ballon plus a woolen cloth. An inflated baloon plus a woolen cloth. Another inflated ballon plus a woolen cloth.

Based on this sequence, what is the most likely observation?
A. Balloon 1 and balloon 2 have a negative charge, so they will pull towards each other.
B. Balloon 1 and balloon 2 have a negative charge, so they will move away from each other.
C. Balloon 1 and balloon 2 have a positive charge, so they will pull towards each other.
D. Balloon 1 and balloon 2 have an opposite charge, so they will move away from each other.