Answer:
Last option, $58.50
Explanation:
Let's look at the graph, and let's do a simple analysis of the information that it shows.
We can see that in 2009, the price was between $30 and $40.
We can see that as the years pass by, the price increases, such that in the year 2013 the selling price spikes and ranges between a bit less than $50 to a little more than $50.
Then we can only expect that a few years later (in 2016) the price to be larger than $50.
The only option that has a price larger than $50 is the last one, $58.50, then that one is the only option that can be the correct one.
We also could do an exact calculation of this if we had the raw data, but as you can see in the graph, we can not know the exact price of each graphed point (we can only estimate it) so we will not get a nice interpolation by only using the given graph.