Subject :NSO Class : Class 10
Study the following letter-number arrangement and answer the question given below :
B84CRM9PDKWFA2EJ7XUQHLTY6GSL
If the first half of the above arrangement is written in reverse order followed by the second half-written in reverse order, which letter/number will be eighteenth from left?
(a) Y
(b) K
(c) 7
(d) 6