I am not to sure but I would go for B. identity.
0.2 repeating is 0.2222222222...
so you have to put the repeating digit(s) divided by 9's
Then it will be 2/9 which yields 0.222222222.....
Multiply principle by time by rate
1200(.02)(5)
120
The answer you are looking for is 6.
To find this answer, you first add 1/6 and 5/6. Adding them together will give you 6/6 or 1. Next, you add all the whole numbers together. 3 + 2 + 1 = 6. Thus making 6 your answer.
I hope this helps!