Final answer:
The statement about 'A Raisin in the Sun' being possibly the most important production of the postwar era could be considered true, given its impact on theater and social discussion. The claim about the market revolution causing many changes in the U.S. is true, as it substantially altered the economy and social structures.
Step-by-step explanation:
Regarding the statement, "Possibly the most important production of the postwar era was A Raisin in the Sun," whether this is true or false could be subjective; however, many would argue that it is indeed true. Lorraine Hansberry's A Raisin in the Sun, debuted in 1959, is a seminal work that explores the African American experience, racial tensions, and the pursuit of the American Dream. The play centers on the Younger family's conflicting aspirations and the use of life insurance money received after the death of Walter Younger Sr. The character Beneatha, in particular, is involved in a struggle over her identity and future, her interactions with other characters revealing the depths of her dreams and flaws. These complex relationships and the play's critical acclaim make it a cornerstone of American theater and a voice for social issues that are still relevant today.
The assertion 'The market revolution brought many social and economic changes to the United States' is true. The market revolution in the 19th century indeed transformed the American economy, ushering in changes in how goods were produced and sold, and altering the social fabric of the nation. The revolution contributed to the rise of factory systems, increased productivity, and the expansion of markets for American goods.