According to Collins $(2005),$ which of the following is false regarding Level $5$ Leadership?

a$.$ We often$-$incorrectly$-$assume big company transformations must come from larger$-$than$-$life leaders.

b$.$ Level $5$ Leadership is an ideological concept, not an empirical one.

c$.$ Level $5$ Leadership is one of multiple drivers of "good$-$to$-$great" companies.

d$.$ If they cannot find a person or event to credit with success, Level $5$ Leaders will attribute it to luck.

e$.$ Level $5$ Leaders show personal humility and professional will.