First, convert the given number from the Indian System to digits: Nine crore ninety-nine lakh ninety-nine thousand nine hundred ninety-nine is 9,99,99,999. In the International System, numbers are grouped in threes from the right (ones, thousands, millions, billions). So, 9,99,99,999 becomes 99,999,999. This reads as Ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-nine. Option A correctly represents this, as 9 crore is 90 million, and 99 lakh is 9.9 million, summing up to 99.99 million approximately.