Objective: How to prepare a canvas for acrylic painting.

Which of the following solutions is more sound in terms of naive physics reasoning?

OPTIONS: a). Make sure the canvas is properly stretched and clean from dust and debris. Use a spray bottle and apply a thin layer of lacquer over the entire canvas and let dry. Now your canvas will be able to showcase the colours you choose and lose none because of an absorbant canvas.. b). Make sure the canvas is properly stretched and clean from dust and debris. Use a wide brush and apply a thin layer of gesso paint over the entire canvas and let dry. Now your canvas will be able to showcase the colours you choose and lose none because of an absorbant canvas..
b).