The country of superlia increased the size of its military force because its leaders inappropriately anticipated that their rival, the country of piropia, would do the same. the piropians subsequently felt it was necessary to respond to the superlian military buildup with a military expansion of their own. the piropian response best illustrates the danger of:
a. social facilitation.
b. the mere exposure effect.
c. deindividuation.
d. self-fulfilling prophecies.
e. the foot-in-the-door phenomenon.

D. self-fulfilling prophecies.

Explanation:

According to my research on studies conducted by various sociologists, I can say that based on the information provided within the question The Piropian's response best illustrates the danger of a self fulfilling prophecy. This is a phenomenon where an individual predicts something will happen, and this “prediction” comes true only because the individual aligns their behaviors in a way that causes that prediction to come true. Just like in this case The country of Superlia believed that Piropia would increase their military so they increased theirs first, which in term caused Piropia to respond by doing the same.

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can you explain it better