The term development is best described as a measurement of a country’s
a.

infrastructure system
b.

basic resources
c.

economic diversity
d.

economic health and social conditions

D.  economic health and social conditions

Explanation:

In economics, development refers to the change in a country's economy  from a low-income national economy to a modern industrial one. These implies both qualitative and quantitative improvements, meaning that not only the general wealth of the population increases but their living standars do to. Some characteristics that show a country's development can be seen in the improvements of the population's health, well-being and academic level.

step-by-step explanation:

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