Before being simplified, the instructions for computing income tax in Contry R were to add 2 percent of one's annual income to the average (arithmetic mean) of 100 unit of Contry R's currency and 1 percent of one's annual income. Which of the following represents the simplified formula for computing the income tax, in Country R's currency, for a person in that whose annual income is I?
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A50 +$$\frac{I}{200}$$
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B50 +$$\frac{3I}{100}$$
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C50 +$$\frac{I}{40}$$
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D100 +$$\frac{I}{50}$$
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E100 +$$\frac{3I}{100}$$