What denotes an individual's basic disposition evident from infancy?

Temperament refers to an individual's basic disposition, or inherent nature, which can be observed and characterized from a young age. It is often seen as a biological or genetic trait and is less influenced by external factors than personality or character. Personality refers to an individual's unique and enduring patterns of thinking, feeling, and behaving. While character refers to an individual's moral and ethical qualities that are shaped by their experiences and environment. Behavior, on the other hand, can be more situational and responsive to external stimuli. So, while all of these options are related to an individual's disposition, temperament is the most accurate answer for the specific question asked.