How does the US tax policy encourage long-term investments? OA by making long-term investments tax exempt
OB. by making Treasury bonds tax exempt
oc. by making it illegal to earn short-term gains
OD. by providing a lower tax rate for long-term gains

step-by-step explanation:

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step-by-step explanation:

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.