Calculate first the value of the z-score of the given data point in this distribution.
z-score = (D - m) / s
where D is the data point, m is the mean, and s is the standard deviation.
Substituting the values,
z-score = (13 - 11) / 1.6 = 1.25
This z-score translates to a percentile of 89%. Thus, the answer is letter B.
