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Find the number......

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$\frac{5}{10}+\frac{7}{100}+\frac{9}{10000}\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}=0.5+0.07+0.0009\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}=0.5000+0.0700+0.0009\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}=0.5709\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}$

Option (D) is correct.

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