Answer:
This question is incomplete as it lacks the table that shows the advantages and disadvantages of the two mentioned nonrenewable source of energy (coal and ore). However, the question can be answered based on general understanding.
The answer is D. Ores must be processed.
Explanation:
Energy can be of two major sources namely: renewable and nonrenewable sources. Based on the mentioned area in this question, NONRENEWABLE SOURCES OF ENERGY are those sources of energy that cannot be replenished or replaced when exhausted. They are utilized faster than they form. Examples of nonrenewable sources of energy are coal, ores, fuel etc.
According to this question, Carlos listed some advantages and disadvantages of using nonrenewable resources. However, among the listed disadvantages, Carlo's error is that he included that: ORES MUST Be PROCESSED.
Ores are rock materials that contain metals, which are extracted and purified in a series of processing techniques. Hence, ORES NEED PROCESSING making Carlo's claim erroneous.
