What type of crowd is characterized as behaving in a manner that supports a common interest among its members?

The correct answer highlights a crowd characterized by a positive and cooperative atmosphere, where individuals come together with a shared intention or purpose that fosters camaraderie among them. A friendly crowd typically exhibits supportive behaviors, promoting a sense of community and collective enjoyment. This type of crowd is often seen at events where participants are united by a common goal or interest, leading to harmonious interactions and positive social engagement.

In contrast, the other types of crowds listed do not emphasize a supportive or positive interaction. For instance, an agitated crowd may display restlessness or unrest, without the cooperative spirit that defines a friendly atmosphere. Hostile crowds can exhibit aggressive or confrontational behavior, opposing rather than supporting each other. Sightseeing crowds, while they may gather around a common point of interest, do not necessarily act in a supportive manner towards one another, as their focus is more often on individual experiences rather than collective camaraderie.

Overall, the nature of a friendly crowd revolves around shared interests and positive interactions, making it distinct from more negative or indifferent crowd dynamics.