Standard of living is the level at
a. producers sell certain goods.
b. consumers buy certain goods.
c. producers make desired goods.
d. consumers enjoy desired goods.

  D. consumers enjoy desired goods.

Explanation:   A living standard is a measure to what extent an individual or community can enjoy wealth, comfort, and material goods. This usually refers to the availability of desired products in a particular geographic area, most often a country. In doing so, the degree of wealth and the availability of desired material goods relates to the broadest socioeconomic community, which is relevant to the determination of standards, and not to a small number of rich individuals.

ayatollah khomeini can best be described as the leader who declared iran to be an islamic republic.

there were abundant sources of fuel nearby