Leaders such as warren buffett who are self-aware and able to control their emotions, enabling them to handle conflicts and challenging situations, are said to be high in

The correct answer is emotional intelligence. 

Emotional intelligence refers to the ability to regulate and monitor one's own emotions as well as identify others' emotions. Individuals high in emotional intelligence are aware of their emotions and able to express them appropriately depending on situational factors. They are also aware and mindful of others' emotions which makes them useful in handling conflicts and promoting harmony.