TBC - Where to download the client?

Hi there,
Where could I download the TBC client please?

There isn't the option on the website, it only offers me WotLK or MoP, as you can see in the following screenshot:
https://imgur.com/a/gKl5uDI

Thanks in advance and sorry if I missed something obvious!

I've tried with different web browsers, I've checked the forum for almost 30 minutes now and I didn't see anything related to that.
Can you guys check it and let me know if you have the option to select TBC client to download or not? At least I would know if the issue is from my side.
Cheers

You have to download the WotLK client to play

Thx for the answer :)