Option C:
All seventh grade students are a population.
Solution:
Given information:
Dane wants to determine how many seventh graders at his school play a spring sport.
<u>To identify the population:</u>
Option A: All of the students in the cafeteria at Dante's school
In this option, only students at cafeteria are given not all the students at seventh grade. So it is not a population.
It is false.
Option B: All of the students in Dante's math class.
In this option, only students in Dante's math class. are given not all the students at seventh grade. So it is not a population.
It is false.
Option C: All of the seventh-grade students in Dante's school
In this option all seventh grade students are given. It is a population.
It is true.
Option D: All of the seventh-grade students on Dante's bus.
In this option, only students in Dante's bus. are given not all the students at seventh grade. So it is not a population.
It is false.
Therefore, all seventh grade students are a population.
Option C is the correct answer.
