Option 1 -> gloomy↔bright, generous↔stingy, polite↔rude, simple↔complex (all correct pairings).
Option 2 -> Incorrectly pairs gloomy with rude instead of bright.
Option 3 -> Incorrectly pairs gloomy with rude and polite with stingy.
Option 4 -> Incorrectly pairs gloomy with complex and simple with bright.
Hence, Option 1 -> The correct antonyms are: gloomy (dark/depressing) pairs with bright (cheerful/lit), generous (giving freely) pairs with stingy (unwilling to give), polite (courteous) pairs with rude (discourteous), and simple (uncomplicated) pairs with complex (complicated) -> correct