A formal gathering occurs when a group of people get together in a fixed place at a fixed time. Which situation below is the best example for a formal gathering? I. Raja sends out 25 invitations for his brother's wedding. II. The book team meets on the first Wednesday evening of every month. III. Whenever she eats at the best restaurant, Revathi accompanies Maha. IV. After getting his promotion, Ram and a few co-workers decide to go out for a dinner after work.