Answer:
option:C is correct.
Step-by-step explanation:
we could clearly see that the graph of this system will pass through the points
i.e. the points (1,2),(2,4),(3,8),......(30,2^30).
so based on the observation from the graph we see that each each day corresponds to a unique amount of pennies in this sequence as there is always a different value of 2^x for each x=1,2,...30.
Hence, option C is correct.