Please help i will mark brainliest for correct answers!

Answer:
i would say the answer is C) simple random sampling
Step-by-step explanation:
this is because an example of a simple random sample would be the names of 25 employees being chosen out of a hat from a company of 250 employees. In this case, the population is all 250 employees, and the sample is random because each employee has an equal chance of being chosen. This is similar to your question where it chooses 100 random people.
hope this helps ;)