During a foreign investment promotion activity in a county, investors made it difficult for investors to say: "I have three projects: environmental projects, tourism projects, and chemical projects. If you are right, I will invest one of these projects in your county. But if what you say is wrong, I don't invest in a project. ". Of course, the attracting party wants to obtain the environmental project, so what should the attracting party say? ['You will not invest in environmental projects or tourism projects in our county.', 'You will not invest in environmental or chemical projects in our county.', 'You will not invest tourism projects or chemical projects in our county.', 'You will not invest both tourism projects and chemical projects in our county.']