NIGERIA has yet to respond to an offer made by the Confederation of African Football (CAF) to co-host the 2000 African Nations Cup with Ghana, an official of the Nigerian football Association (NFA) said Friday. The official, who asked not to be named, said the NFA would consult with the government before making its decision. A report on the official News Agency of Nigeria (NAN) Thursday cited an unnamed presidency source as saying Nigeria was insulted by the suggestion it should co-host the championship. The report could not be confirmed Friday.