The box plot was created by using which pieces of data?

A box-and-whisker plot. The number line goes from 30 to 80. The whiskers range from 38 to 66, and the box ranges from 42 to 56. A line divides the box at 50.

an upper quartile of 56 and a median of 50
a lower quartile of 56 and a median of 50
a median of 56 and a lower quartile of 50
a median of 56 and an upper quartile of 50