$4500 Is Invested in an Account at Interest Rate R,compounded $r = 0.0315$

Multiple Choice

$4500 is invested in an account at interest rate r,compounded continuously.Find the time required for the amount to triple.(Approximate the result to two decimal places. ) ​ $r = 0.0315$ ​

A) 21.00 yr
B) 20.00 yr
C) 34.88 yr
D) 24.00 yr
E) 23.00 yr