In each of the questions given below, a group of digits is given followed by four combinations of letters/ symbols numbered (a), (b),C. and(d). You have to find out which of the four combinations correctly represents the group of digits based on the letter/symbol codes and the conditions given below. If none of the four combinations represents the group of digits correctly, give E. i.e. `None of these' as the answer.
(i) If the first digit is odd and last digit is even, the codes for the first and the last digits are to be interchanged.
(ii) If the first as well as the last digit is even, both are to
be coded by the code for last digit.
(iii) If the first as well as the last digit is odd, both are to
be coded as X.
(iv) If the first digit is even and last digit is odd, both are
to be coded by the code for the first-digit.
if 1 is coded as $, 5 is coded as %, 9 is coded as , 3 is coded as +, 7 is coded as # and 4 is coded as?, what will be the correct code of the number 435971?