Which graph is a histogram

Answer:
The last one is a histogram. Histograms usually have that bar shape, and shows the fluctuation over time.
Answer:
Im unsure of this specific one because of the camera work, but another edg question phrased this way has the answer as B: Spring Sports Students Grage 3-4 5-6 7-8
Step-by-step explanation:
Histograms show the data through intervals :)