A. three main periods: 1995–2000, the period of invention; 2000–2006, the period of consolidation; and 2007–present, the period of reinvention.
B. three main periods: 1996–2000, the period of invention; 2001–2006, the period of consolidation; and 2007–present, the period of reinvention.
C. three main periods: 1995–2000, the period of invention; 2001–2006, the period of consolidation; and 2007–present, the period of reinvention.
D. three main periods: 1995–2000, the period of invention; 2001–2006, the period of consolidation; and 2008–present, the period of reinvention.
