The economy is in long-run equilibrium: select one:

a. when the ad and as curves intersect at potential output, y*.
b. when the ad and as curves intersect, regardless of the level of output.
c. when the ad and as curves become vertical.
d. only when the business cycle is eliminated.

A, when the AD and AS curves intersect at potential output,Y.

Explanation:

Aggregate demand curve is a graphical representation that shows the relationship between total goods and services and its price levels.

Aggregate supply curve is a graphical representation that shows the relationship between the total amount of good and services firms are willing to sell and at what price the want to sell.

For an economy to be in long-run equilibrium, an economy has to have both curves meet at a point Y which is the potential output of the economy. This means simply that demand and supply has to be balanced (in equilibrium).

I hope this helps.

being born in poverty would limit the people's chances, opportunities and benefits.

this happen because of several things, such as:

- poor people tend to gain less access to good education and nutrition. this mean that their chance to obtain high paying jobs would also be limited.

- poor people tend to socialize with other poor people while the rich tend to socialize with other rich people. this means that simply throguh their social circle, rich people would have more business opportunities compared to the poor people.

- rich people tend to have more capital in their disposal. this would benefit them in business since it is far easier for them to fund their business operation compared to poor people.