Thomas Malthus was pessimistic about the ability of a society to achieve high standards of living for most of its citizens because he believed that: O B. Significant population growth would result in shortages of food and resources. O D. High tax rates would eventually undermine people's incentives to work hard and create wealth. O A. Government has a natural tendency to run deficits that would eventually bankrupt a nation. O C. Owners of businesses would deliberately exploit their employees in an attempt to earn greater profits, and this would ultimately lead to a worker's revolt