А с show что не так?

hace 6 años

"European systems started to appear once people had heard about it. The single problem with all the systems was that they couldn’t really (30) __a play__ b show__ c project__ d plan____ the film onto a screen — you know, so more than one person could see it."
I am going to choose 'project', however, I can't understand what's wrong with chosing 'show'?