Which of the following types of psychological crowds is characterized as being disturbed by emotional influences?

The type of psychological crowd characterized as being disturbed by emotional influences is agitated. Agitated crowds are often marked by heightened emotions and a sense of unrest, which can lead to impulsive or irrational behavior. This type of crowd may be influenced by anxiety, fear, or other strong emotions, causing individuals within the group to react collectively in ways that might escalate tensions or conflicts.

In contrast, friendly crowds are generally cooperative and positive, while hostile crowds exhibit aggressive or confrontational behaviors directed at others without the same level of emotional disturbance inherent in agitation. Sightseeing crowds are typically engaged in passive observation and enjoyment and are less likely to be swayed by emotional turmoil, focusing instead on the experience itself. Therefore, the defining characteristic of agitation is its direct link to being disturbed by emotional influences, distinguishing it from the other types.