The organisms in the Cretaceous period and Permian Period are now extinct.
The emergence and demise of specific living forms are represented by time periods on the geologic time scale that span hundreds of millions of years. A mass extinction is a period of geologic time when a large number of plant and animal species go extinct, sometimes within a few thousand to a few million years.
Life has recovered after each of the five significant mass extinctions that have taken place during the past 500 million years. Because it led to the extinction of the dinosaurs, the mass extinction at the end of the Cretaceous Period is the most well-known. However, the Permian Period's end saw the most extreme one in terms of the number of species destroyed.
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Thats an opinionated question though
Most people pay federal income tax by having amounts withheld from their income. It is usually the employer who does the computation and for deducting the amount from your pay. The employer will have to submit all of their employees' tax amounts to IRS to have it processed. In this way, the employee don't have to file it directly with IRS.
The answer would be letter C.