Which of the following statements is true about the floral regions of the Earth?

I- The Australian Kingdom includes the entire Australian continent and its surrounding islands.
II- The Antarctic Kingdom is the richest in floral diversity.
III- The Mediterranean region is characterized by evergreen forests of small-leaved trees and shrubs.
IV- The Euro-Siberian region is located in the central part of the European continent, between the Boreo-Alpine regions to the north and the Mediterranean regions to the south.
a) Only statements I and III are true.
b) Only statements II and IV are true.
c) Only statements I and IV are true.
d) Only statements II and III are true.