There are two four bit messages, 1010 and 1110. The first one is appended with an odd parity bit, the second one with an even parity bit. What are the values of the parity bits for the first and second messages respectively:
(a) First is "1" second is "0"
(b) First is "0" second is "1"
(c) First is "1" second is "1"
(d) First is "0" second is "0"