All actions to address climate change ultimately involve costs. Funding is vital in order for countries like India to design and implement adaptation and mitigation plans and projects. The problem is more severe for developing countries like India, which would be one of the hardest hit by climate change, given its need to finance development. Most countries do indeed treat climate change as real threat and are striving to address it in a more comprehensive and integrated manner with the limited resources at their disposal.

With reference to the above passage, the following assumptions have been made :

1. Climate change is not a challenge for developed countries.

2. Climate change is a complex policy issue and also a development issue for many countries.

3. Ways and means of finance must be fount to enable developing countries to enhance their adaptive capacity.

Which of the above assumptions is/are valid?