Where did indentured servants come from

Soon-yi's house has a hexagonal window made up of six identical equilateral triangles as pictured below.

Match the people with the appropriate description. vernon and irene castle arthur murray fred astaire willi ninja a. stylized the forms of ballroom dance by incorporating other dance forms b. responsible for renewing the influence of ballroom dance in america c. godfather of vogue danced. responsible for standardization/teaching of steps leading to spread of ballroom dance education

Which of the following was a factor in the development of the english common law ?