While implementing strategic group mapping for the U$.$S$.$ domestic airline industry, two strategic groups become apparent: low$-$cost$,$ point$-$to$-$point airlines $($Virgin Atlantic, Alaska Airlines, JetBlue, and Southwest Airlines$)$ versus differentiated airlines using a hub$-$and$-$spoke system $($American$,$ Delta, and United$).$ Which of the following statements is true about these two strategic groups?

Competitive rivalry between Virgin Atlantic and Delta Airlines is likely to be higher than that between American, Delta, and United.

We should expect that American, and Delta Airlines will be affected differently by Porter's five competitive forces.

Competitive rivalry between Alaska Airlines and Southwest Airlines is likely to be higher than that between Delta and JjetBlue.

Alaska Airlines and Delta Airlines will be affected by the externa! environment in very similar ways.