Answer:
A
Explanation:
An outlier is a data point that seems like it shouldn't belong; it could be extremely small or extremely big or simply not even a part of the correlation.
Looking at the scatter plot, it's quite clear that there is one point far from the others. This will be the outlier.
Observe its coordinates; they are about (8.8, 5.2).
So, the answer is A.
Hope this helps!