The histogram shows the numbers of shoppers in various age groups at a clothing store. Use the histogram to answer the question.
How many shoppers are at least 30 years old?
A.
5
B.
7
C.
13
D.
17
![The histogram shows the numbers of shoppers in various age groups at a clothing store Use the histogram to answer the question How many shoppers are at least 30 class=](https://us-static.z-dn.net/files/d56/6d651f545270e65c7b5c09d44ee618ae.jpg)