If you set "Offer" = None it will not be used on your booking page.
If the daily price row is for channel management only, set this to "none " so it does not appear on your booking page. "Offer 1" is your standard offer to the guest which is always displayed. Only set "Offer" to 2, 3, 4 if you have activated additional offers. If you want to set up prices for different occupancies set them all to "Offer 1" or if used only for channel management "none"