Zucchini Bread

Name: Zucchini Bread
Ingredients: 3 cups flour; 1 teaspoon salt; 1 teaspoon baking soda; 1 teaspoon baking powder; 1 tablespoon cinnamon; 3 eggs; 1 cup vegetable oil; 2 1/4 cup white sugar; 3 teaspoons vanilla; 2 cups grated zucchini (or 3/4 lb); dark chocolate chips (optional); 1 cup chopped walnuts (optional)