B. There are efficient ways to process the ores into liquid and D. their ores are abundant
Explanation:
Aluminum is the most ample element occurs at the surface of the Earth.
Bauxite is the main ore of aluminum occurs naturally and processing these ores are also easier.
An important alloy of iron as well as carbon is nothing but the steel in which the carbon is present only in small percent (2%).
Steel is widely used in industries and buildings due its minimum cost of production, processing charges and its abundance.
