The table shows the number of practice problems completed in 30 minutes in three samples of 10 randomly selected math students. Which statement is most accurate based on the data?

O A. A prediction based on the data is not completely reliable, because the means are too close together.

B. A prediction based on the data is reliable, because each sample has 10 data points. O

C. A prediction based on the data is reliable, because the means of the samples are close together.

D. A prediction based on the data is not completely reliable, because the means of samples 1 and 2 are greater than 16 and the mean of sample 3 is less than 16.​