In $$1975$$ it was estimated that there were $$250000$$ lions in Africa.  Over $$40$$ years this figure has decreased by $$90\textbackslash\%$$.  What is the current estimate for the number of lions in Africa ? 
选项为:A:$$25000$$  B:$$100000$$  C:$$160000$$  D:$$225000$$  E:$$275000$$  请回答其中一个选项.