A. Tax cuts increase disposable income, which leads to a higher national income and additional consumer spending.
<span>B. Tax cuts reduce government spending, which encourages consumer spending. </span>
<span>C. Tax cuts reduce interest rates, which stimulates consumer spending and borrowing. </span>
<span>D. Tax cuts increase government transfer payments, which leads to a higher national income and additional consumer spending. </span> The answer is A. Also increases government revenue in the long run. Tax cuts increase consumer spending which creates growth, which creates more jobs (tax payers)
Internal validity would be the extent through which a record an accounting a reliable reason as well as effect correlation among both medications as well as consequence.
Perhaps it speaks to the fact that the original study ends up making it achievable to help reduce possible causes for something like a discovering.