**(I)** Bolu lies in a transition zone where the humid Black Sea climate in the north gradually gives way to the more continental conditions of the interior to the south. **(II)** Such a geographical position creates a blend of both weather regimes, giving the region cooler temperatures and higher precipitation than many surrounding areas. **(III)** These conditions nurture Bolu's lush greenery, while its ancient coniferous forests, endemic plant species, and diverse wildlife further enhance the region's rich natural character. **(IV)** The varied topography of the region, ranging from high mountain meadows to densely wooded valleys, is the result of millions of years of geological activity and tectonic movements. **(V)** With this unique confluence of climatic zones and habitats, the city offers exceptional opportunities for hiking, wildlife observation, and many other outdoor pursuits.
A) I
B) II
C) III
D) IV
E) V