The correct answer is C. Increases.
When the collector current IC increases, the value of VCE also increases. This is because the collector current is the current that flows through the collector of the transistor, and the voltage across the collector-emitter junction (VCE) is the voltage that is dropped across the collector-emitter resistor. When the collector current increases, the voltage drop across the collector-emitter resistor also increases, and this causes the voltage across the collector-emitter junction to increase.
Option A is incorrect because the value of VCE does not remain the same when the value of collector current IC increases. Option B is incorrect because the value of VCE does not decrease when the value of collector current IC increases. Option D is incorrect because the value of VCE does increase when the value of collector current IC increases.