Which statement is true. In the aggregate sense:

(A) Total spending will equal total income
(B) Total spending + total income will equal the value of the output
(C) Total spending will be larger than total income
(D) Total income will be larger than total spending

What could cause a production possibilities curve to move down and to the left? a.) a nation loses land after being defeated in a war. b.) an increase in the use of computer technology speeds up production c.) a baby boom 20 years ago results in a large number of young adults in the population today. d.) thousands of investors from overseas invest money in a nations economy.