Manny is helping with a sea turtle conservation group and counts the number of turtle hatchlings that emerge from a nest every hour. He graphs the average of the data on a coordinate grid, as shown.
What is the unit rate for turtle hatchlings emerging from the nest?
A. 9/100 hatchling per hour
B. 5/6 hatchling per hour
C. 6/5 hatchling per hour
D. 100/9 hatchling per hour