Effective decision-making means comparing the additional
costs of alternatives with the marginal benefits.
To add, <span>a </span>marginal benefit<span> is the additional satisfaction or utility that a
person receives from consuming an additional unit of a good or service.</span> It
is also the topmost amount he is willing to pay to consume that additional
unit of a good or service.
C due to the structure of red blood cells it’s able to move through blood vessels easier. Which makes this an obvious answer. The structure helps them to function