In order for the standard of living within a country to be enhanced over time, which of the following is essential?

a. The role of the country’s government in the economy must become larger.
b. The population of the country must increase.
c. More domestic natural resources must be discovered and used.
d. The level of productivity must increase.

GOOD QUESTION BRO

Step-by-step explanation:

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step-by-step explanation:

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq