In the month of January, the railway police caught 4000 ticketless travellers. In February, the number rose by 5%. However, due to constant vigil by the police and the railway staff, the number reduced by 5% and in April it further reduced by 10% . The total number of ticketless travellers caught in the month of April was
(a) 3125
(b) 3255
(c) 3575
(d) 3591