In the question below, a passage is followed by three statements that may or may not be inferred from the passage. Select the correct combination of statements that can be inferred. Passage:
Renewable energy sources such as solar and wind are becoming increasingly important as countries aim to reduce carbon emissions. However, the shift to renewable energy faces challenges. Energy storage technology is still developing, and renewable sources are often inconsistent due to changing weather conditions. Despite these issues, many nations continue to invest heavily in renewable infrastructure to meet long-term sustainability goals. Statements: 1) Renewable energy sources do not always provide a consistent supply of power. 2) Countries are investing in renewable energy despite existing technological challenges. 3) Energy storage technology is already fully developed and widely efficient.