Why did people value silphium?fill in the blank

From which of the following literary works is this quotation most likely taken?

How did government policies contribute to the beginning of the industrial revolution in great britain? o a. the british government passed laws that prevented any businesses outside the country from learning about manufacturing innovations. b. the british government established factories that produced industrial goods at low prices. c. the british government broke up joint stock companies to promote competition. d. the british government paid a large percentage of the wages earned by industrial workers.

What river systems the worlds earliest known civilization develop ?