What is one example of economic agility from Madam C$.$J$.$ Walker$$s life?

a$.)$

She renamed herself, after being born as Sarah Breedlove.

b$.)$

She worked as a laundress.

c$.)$

She started her own hair care and cosmetics business at the age of $38.$

d$.)$

She moved from rural Louisiana to the city of St$.$ Louis.