Final answer:
The standard of living in the eight most populous countries of the Asia/Pacific region varies widely, influenced by various quality of life factors such as health, education, and environmental quality. Option number b is correct.
Step-by-step explanation:
The standard of living varies widely in the eight most populous countries of the Asia/Pacific region, with some countries sporting high standards and others having relatively low ones. Such variability is due to a tapestry of factors impacting quality of life, including but not limited to health, education, human rights, crime and personal safety, and environmental quality. These aspects of life are critical in assessing the standard of living, beyond raw economic figures like per capita GDP.
While income levels do contribute to standards of living - higher-income regions tend to have better quality of life indicators - there are significant exceptions, evidenced by issues such as undernourishment in wealthy regions like Europe and North America. Therefore, statement B) 'Wide variations exist, with some countries having high standards and others relatively low' is true regarding the standard of living in the eight most populous countries of the Asia/Pacific region.