How do single stories positively or negatively relate to U. S. History?

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

Why is julius caesar considered an important roman leader? a. his assassination led to a civil war that ended the roman republic.b. his commitment to justice led to the creation of the twelve tablesc. his support for democracy led to expand voting rights for all romansd. his policies as dictator led to a period of peace known as the pax romana

One of the person important products for britain's manufacturers was