There Are several versions in section three buti don't understand why

When you ask about a specific noun, there are three ways to pose the question:

C'est quoi le Louvre? -- What is the Louvre?
Qu'est-ce que c'est le Louvre?
Qu'est-ce que c'est que le Louvre?

The first and third option are a bit more colloquial than the second one.

They are different ways to ask: "What is this?" Some use que and others don't. For example:

C'est quoi? versus Qu'est-ce que c'est?

Literally, c'est quoi? means "This is what?" And qu'est-ce que c'est? is "What is it that this is?" This also ties in with the different ways to pose a question in French.

You might find it helpful to read the discussion of this topic at the bottom of the lesson.

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there appear to be four versions in the lesson, you didnt mention qu'est ce que le louvre; it appears to be from the formal qu'est ce que cela, would be a more formal version also?

there appear to be four versions in the lesson, you didnt mention qu'est ce que le louvre; it appears to be from the formal qu'est ce que cela, would be a more formal version also?

What a lot of kobles!