Which of the following is an example of a long run production scenario?

Busath Photography adds four more temporary photographer assistants for the summer wedding photography boom this year.

AutoBlast, a local car wash business, has improved its wash production process and now has expanded into $10$ new states over the last $5$ years.

A large order for steel I$-$beams requires that Steely Dan, Inc. hire $5$ temporary workers to boost his company's production line to complete the order on time.