Find the Indicated Probability If We Randomly Select One of the Customers Represented in the Amount

Find the indicated probability.
-The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The frequency table below summarizes the results. $$\begin{array} { r | r } \begin{array} { r } \text { Waiting Time } \\\text { (minutes) }\end{array} & \begin{array} { r } \text { Number of } \\\text { Customers }\end{array} \\\hline 0 - 3 & 9 \\4 - 7 & 10 \\8 - 11 & 12 \\12 - 15 & 4 \\16 - 19 & 4 \\20 - 23 & 2 \\24 - 27 & 2\end{array}$$ If we randomly select one of the customers represented in the table, what is the probability that the waiting time
Is at least 12 minutes or between 8 and 15 minutes?

A) 0.727
B) 0.651
C) 0.558
D) 0.093