Hello there!
Your question asks which part of a webpage would you find information about people who contributed to the webpage.
Answer: Credits
The reason why "Credits" would be the correct answer is because you would find all of the contributors in that specific section.
In the credits section, you would find names of people that created the webpage, people who edit the webpage, and people who own the webpage.
You would not find any information about crediting someone in another part of a webpage. For example, you would not find the credits for someone that created the webpage in the home page, due to the fact that most people that go on the website do not look for the people that contributed.
I hope this helps!
Best regards,
MasterInvestor