Please read the passage below and answer the question that follows.

Southwest Airlines is a company that has formulated a unique business strategy. It has consistently achieved above$-$average returns in a volatile industry plagued by issues of low profitability, weak employee morale, and poor customer satisfaction. Keys to Southwest Airlines' ongoing success include a point$-$to$-$point service targeted at delivering superior value to its customers in the domestic airline market, and a unique high$-$energy corporate culture.

Q$.,$A Porter's Five Forces Analysis of the airline industry would predict that industry profit potential is $$ because $$

low; industry rivalry is high, there are many substitutes

low; Industry rivalry and buyer bargaining power are low

high; buyer and supplier bargaining power is low

high; entry barriers are high, industry rivalry is high