The box-and-whisker plot describes the scores of golfers in a recent tournament.

what was the minimum score?

a.
85

b.
110

c.
70

d.
90

The minimum score was 70.

On a box-and-whisker, the dot on the left end is the lowest value.
The first line on the left is the lower quartile.
The second line is the median.
The third line is the upper quartile.
And finally, the dot on right end is the highest value. 

Hope I could help :)