Consistent with the concept of preparedness,what is the most common type of phobic stimuli

A)  cars and other vehicles
B)  guns and other weapons 
C)  symbols, such as the number 13
D)  animals, such as snakes

According to the concept of preparedness, humans are biologically prepared to develop a fear response to certain stimuli that have posed a threat to our ancestors' survival. One of the most common phobic stimuli that humans are predisposed to fear are animals, such as snakes or spiders. These animals were once dangerous to our ancestors, so our brains have evolved to easily associate them with fear and prepare us for potential danger. Thus, option D is the most likely choice.