Seton Hall Trucking Co. just hired Sally Kissel to verify daily invoices and accounts payable. She took 9 hours and 23 minutes to complete her task on the first day. Prior employees in this job have tended 10 follow a 90% learning curve. How long will the task take at the end of?
(a) The 2nd day?
(b) The 4th day?
(c) The 8th day?
(d) The 16th day?