Consider the following statements If a sum of money is lent at simple interest, then the money gets doubled in 5 years if the rate of interest is `16 2/3%` money gets doubled in 5 years if the rate of interest is 20% money becomes four times in 10 years if it gets doubled in 5 years. Of these statements, (a) 1 and 3 are correct (b) 2 alone is correct (c) 3 alone is correct (d) 2 and 3 are correct