资料：Now you are preparing a report for the business negotiation which will be held next Friday. There are 5 sentences excerpted from the report,each sentence has four words or phrases underlined.The four underlined ports of the sentence are marked （A）, （B）, （C）, （D）.You are to identify the one underlined word or phase that should be collected or rewritten.Then,find the number of the question and mark your answer. As governments of many African countries have established policies that are inviting to foreign investors （A）,economic growth on African continent is expected to （B）increase by as many as （C）5 or 6 percent over the next two years,which would be the continent’s highest growth rate since the worldwide economic recession in 2009 and of all Sierra Leone will be the fastest growing country in the area because of （D）its iron ore exports,as well as its agriculture and building industries.