Which way is the correct way to write this sentence?

Question

We went to mount rushmore, which is a large mountain with the faces of presidents found near keystone, south dakota.

(1 point)
Responses

We went to mount Rushmore, which is a large Mountain with the faces of presidents found near Keystone, south dakota.
We went to mount Rushmore, which is a large Mountain with the faces of presidents found near Keystone, south dakota.

We went to mount rushmore, which is a large mountain with the faces of presidents found near Keystone, South Dakota.
We went to mount rushmore, which is a large mountain with the faces of presidents found near Keystone, South Dakota.

We went to Mount Rushmore, which is a large Mountain with the faces of presidents found near Keystone, South Dakota.
We went to Mount Rushmore, which is a large Mountain with the faces of presidents found near Keystone, South Dakota.

We went to Mount Rushmore, which is a large mountain with the faces of presidents found near Keystone, South Dakota.

Answer 1

We went to Mount Rushmore, which is a large mountain with the faces of presidents found near Keystone, South Dakota.