Concept:Solar energy is renewable but has several drawbacks; however, having sufficient financial resources is an advantage, not a problem.
Explanation:Read the options carefully and identify which one cannot be considered a difficulty.
Poor technological know-how is a problem because it reduces the efficiency and development of solar systems.
Unreliability is a problem because solar energy depends on sunlight and weather conditions.
Fear of competition with established energy sources is a problem because it may discourage investment and adoption.
Adequacy of capital means there is enough money available, which supports the installation and maintenance of solar panels.
Therefore, adequacy of capital is not a challenge but rather a condition that makes harnessing solar energy easier.
Answer:B. Adequacy of capital.