Read the following passage and answer the question. The concept of sustainable development has evolved considerably over the last few decades, transitioning from a primarily environmental focus to…

Read the following passage and answer the question.
The concept of sustainable development has evolved considerably over the last few decades, transitioning from a primarily environmental focus to an integrated approach that includes economic, social, and cultural dimensions. Initially, discussions surrounding sustainability were centred on the conservation of natural resources, biodiversity, and the protection of ecosystems. However, the growing realisation that economic growth cannot be sustained without considering social and cultural implications led to the development of a more comprehensive framework for sustainability.

At the core of this modern approach is the idea that human well-being must be the ultimate goal of development. Rather than focusing solely on economic indicators such as Gross Domestic Product (GDP), sustainability now incorporates indicators related to health, education, equality, and overall quality of life. In this regard, sustainable development involves ensuring that economic growth does not come at the expense of social equity or environmental preservation.

One of the key challenges of sustainable development is the need for intergenerational equity, meaning that the actions we take today must not compromise the ability of future generations to meet their own needs. This concept places a moral responsibility on current societies to balance immediate economic growth with long-term environmental stewardship and social welfare. While technological innovations and policy interventions can play a significant role in facilitating sustainable development, the underlying principle remains that sustainability is not solely about managing resources efficiently, but also about fostering a more equitable and just society for all.

The global shift towards sustainability is not without its challenges, particularly in balancing the needs of developed and developing nations. While wealthier countries have the resources and infrastructure to implement sustainability initiatives, poorer nations often face significant barriers, such as lack of access to technology, financial constraints, and socio-political instability. Despite these challenges, the recognition of sustainability as a global priority has led to cooperative efforts among nations, aiming to address these issues through frameworks such as the Paris Agreement on climate change.

Which of the following is cited as a major obstacle for developing nations in achieving sustainability?