Here's a problem to solve: A scientist claims that he made a discovery in the lab. What does the scientist need to have in order to prove that the discovery is valid?

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

- A: diagrams showing the steps used in the discovery
 
- B: accurate records that show that the data are consistent
 
- C: documents showing that the scientist is well known
 
- D: proof that the equipment used in the discovery is of high quality
 