Final answer:
The statement 'The copper wire can be bent' indicates the physical property of ductility and is a qualitative observation because it lacks a numerical measurement.
Step-by-step explanation:
The physical property described by the statement 'The copper wire can be bent' is ductility. Ductility is the ability of a substance to be deformed into thin wires. Since this statement does not mention any specific numerical value or measurement, it is considered a qualitative observation. Therefore, the correct answer to the student's question is c) Ductility, qualitative.
Review of Concepts
Malleability refers to the ability of a substance to be deformed into thin sheets, not wires. Ductility is specifically about being drawn into wires. Observations that describe the measure, amount, or quantity of a property are quantitative, while those that describe the quality or characteristic without a specific measurement are qualitative.