Hello, i believe the correct answer is D) All of the above
<span>Sensorimotor period are mental representations that are reversible.
During this period, children started to learn the relationship between their thoguht and the environment around them.
The perception that made during this period will eventually be changed as the children grow and obtain the ability to formulate abstract concept.
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<span>To stabilize an unstable economy,
a proposed policy rules must include expansionary and contractionary fiscal
policies to shift aggregate demand in response to a recessionary gap and
inflationary gap. Another policy is to increase government purchases for it can
increase income, which in turn increases consumption. Then, a change in
business taxes would increase in the investment tax credit or a reduction in
corporate income tax rates, which will increase investments. In addition,
income taxes should be lessen to increase consumption or buying power of consumer, which will affect the
aggregate demand. Lastly, a policy rules in change in transfer payments should
also be included for it can also change the aggregate demand curve of the
economy.</span>
