The correct option is that both Statement-I and Statement-II are correct, and Statement-II explains Statement-I. The Sahel region, which spans several countries in Africa, has been plagued by instability, compounded by issues such as ethnic tensions, poverty, and the rise of extremist groups. The prevalence of military coups, as indicated in Statement-II, reflects a breakdown of governance and civil order, leading to further security deterioration, thereby substantiating the claim made in Statement-I about the worsening security situation in the region. This relationship between governance and security is critical in understanding the dynamics of political instability in the Sahel, a topic often explored in UPSC examinations.