Solution

Ivory Coast's decision to join the UN Water Convention marks a significant step towards enhancing cooperative water management across borders, especially considering its high vulnerability to climate change and shared transboundary river basins. The convention, initially a regional framework for Europe, expanded globally in 2016, enabling countries outside Europe, including several African nations, to join and benefit from cooperative water management frameworks. While statements A, B, D, and E accurately describe the context and implications of Ivory Coast's membership in the convention, statement C is incorrect. The Bhusanket Web Portal and Bhooskhalan Mobile App are not specifically related to Ivory Coast's water management. Instead, these tools were mentioned in the context of disaster risk reduction and daily landslide forecasts, which are not directly connected to the UN Water Convention or Ivory Coast's water management initiatives. Therefore, option C is the correct answer as it contains the statement that is not accurate regarding the given information about Ivory Coast's recent developments in water management.