SEOUL - The two rivals for South Korea’s presidency made a final pitch to voters - the eve of an election that looks set to go down to the wire and could produce the country’s first female leader. The winner of Wednesday’s ballot will face numerous foreign and domestic challenges, including a pugnacious North Korea, a slowing economy and soaring welfare costs in one of the world’s most rapidly ageing societies. Ruling conservative party candidate Park Geun-Hye is looking to make history as the first female president of a still male-dominated nation, and the first to be related to a former leader. Park, 60, is the daughter of one of modern Korea’s most polarising figures, the late dictator Park Chung-Hee.