The correct answer is option 1. The word persistent means existing for a long period of time. The word is used in this context in sentence B to describe the incessant/continuous rain. It is also used in the same context in sentence A to denote the temperature changes as existing for a prolonged period of time. However, the word does not make sense in sentence C. Based on the context, the word malevolent is more appropriate. It means showing the tendency to do evil to others. With immersive experiences that will make you scream with both laughter and terror, the London Dungeon is home to some of the most fascinating and malevolent stories ever told in the capital.