Hide "Leave a Reply" section from page

removing the reply box=> ‘edit page’ page, you should have the options to stop comments, below the page editor, a box ‘discussion’

if that is not there, click the ‘screen options’ tab near the top right of that page, and tick the appropriate tick box.

then checked out the (Allow comments.
Allow trackbacks and pingbacks on this page. )

check the screenshot

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