GCSE Science/Electricity multiple choice practice question 8

The graph above shows how the potential difference across a conductor varied with the current flowing through it. Which of the following statements is true ?

• The resistance of the conductor increases as the current increases
• The resistance of the conductor decreases as the current increases
• The resistance of the conductor stays constant as the current increases
• It is not possible to say anything about the resistance of the conductor based on the information given