Which type of traits have a widespread influence on an individual’s behavior across various situations according to Allport?

Central traits, according to Gordon Allport's trait theory, are fundamental characteristics that shape an individual's behavior across different situations. They represent the core qualities that are generally visible and can be directly linked to how a person interacts with the world. Unlike cardinal traits, which are rare and dominate a person's entire life, central traits are more common and serve as key descriptors of personality.

These traits provide a consistent pattern of behavior, allowing others to predict how the individual is likely to react in various contexts. For example, if someone is described as being friendly, this trait would influence their behavior in multiple scenarios—be it at work, in social settings, or at home.

In contrast, secondary traits are more context-specific and not as pervasive; they might appear only in certain situations and do not consistently govern behavior. Personality traits is a broader term that might encompass all types of traits, but it does not pinpoint the specific influence attributed to central traits as defined by Allport. Therefore, central traits are the key to understanding the widespread influence on behavior, making this the correct answer.