Here's a problem to solve: A class plans an investigation to see which brand of light bulb lasts the longest. Which of these steps should come first?

Among the 4 following options, which is the correct answer?

- A: Repeat the investigation.
 
- B: Write a report of the results.
 
- C: Make a table for recording data.
 
- D: Make daily observations of the light bulbs.
 