Read this and answer the question

Egypt's most prominent multinational companies are the Orascom Group and Raya Contact Center. The information technology (IT) sector has expanded rapidly in the past few years, with many start-ups selling outsourcing services to North America and Europe, operating with companies such as Microsoft, Oracle and other major corporations, as well as many small and medium size enterprises. Some of these companies are the Xceed Contact Center, Raya, E Group Connections and C3. The IT sector has been stimulated by new Egyptian entrepreneurs with government encouragement.[citation needed]

What sector has expanded radiply by selling outsourcing services to North America and Europe?
information technology (IT)