Students in a school were asked to collect old bottles as part of a recycling drive. Some of the data recorded at the drive is shown in the histogram below: A histogram is shown with title Recycle Drive Collection. On the horizontal axis the title is Number of bottles. The title on the vertical axis is Students. The range on the horizontal axis is 0 to 3, 4 to 7, and 8 to 11. The values on the vertical axis are from 0 to 10 at intervals of 1. The bar for the first range is till 3, the bar for the second range is till 6, the bar for the third range is till 1.

Which information is not provided in the histogram? (5 points)

a
The total number of students who collected bottles

b
The number of students who collected exactly 9 bottles

c
The number of students who collected 3 or fewer bottles

d
The total number of students who collected 7 or fewer bottles