If you create a box-and-whisker plot for the data set, which expression correctly calculates the third quartile, Q3, of the data set?

{4.3, 5.1, 3.9, 4.5, 4.4, 4.9, 5.0, 4.6, 4.1, 4.6, 4.4, 4.3, 4.8, 4.4, 4.2, 4.5, 4.4}