it's gonna be A, C is an equation that shows the replication of bacterias in an arithmetic progression, A shows the replication in a exponential progression.
if you would like to input it, in the first hour, x = 1, so 2¹ = 2 × 100, 200, so we can see it doubled, So A is the answer
Yes, it is possible. If there is the number 2, 4, 8, 16, 32, 64. I could assume each time they are multiplying by 2. Other person could assume they are adding the orginal to the orginal number.