Global attention to South Asia intensified significantly after India and Pakistan attained nuclear capabilities in 1998. India conducted its initial nuclear tests in May 1998, with Pakistan conducting its own later that same month. This event redirected international focus to the region, driven by apprehensions regarding nuclear proliferation and the possibility of conflict between these two nations possessing nuclear weapons.
While other conflicts, such as the Kargil War (1999) and the 1971 Bangladesh War, held considerable importance, the nuclear tests by India and Pakistan in 1998 were the primary catalysts for global attention.
Therefore, the accurate response is (C) India and Pakistan both achieved nuclear power status.