According to Peter Singer's theory, we (the affluent) ought to give to the needy until we reach the level of marginal utility-which means that in giving the appropriate amount, we would reduce ourselves to very near the material circumstances of:

a. a middle-class American.
b. a Bengali refugee.
c. an immigrant from working-class Britain.
d. the average citizen of the United Arab Emirates.

b. a Bengali refugee

Explanation:

Peter Albert David Singer AC was a popular Australian moral philosopher. He was well known for his works in Bioethics.

He proposed a theory which states that:

‘We(the affluent) ought to give to the needy until we reach the level of marginal utility-which means that in giving the appropriate amount, we would reduce ourselves to very near the material circumstances of a Bengali refugee’. This simply tells us that we ought to save the lives of strangers when we can do so at relatively little cost to ourselves.

do all equestions have to be answered

for your question the answer would have to be france