How might the world be different if constantinople had not successfully defended itself for a thousand years?

Which of these statements best describes the ambiguity in this excerpt

Monopolies were legal in the united states until a)the 1860s. b)the 1870s. c)the 1880s. d)the 1890s.

In a low-income household in the developed world, more than 30% of a woman's income typically goes toward a. transportation costs b. child care c. clothing and incidentals d. the repayment of educational loans