Anya recorded the temperatures of four different smooth materials after they were placed under a heat lamp for thirty minutes. Which conclusion is best supported by the information in the chart?

Since there is no chart presented, I assume that the content of the chart would be the temperature versus the smoothness or color of the smooth materials. The conclusion that can then be derived from her observation is that depending on the color, the temperature of the material will vary. This is because different colors of materials will have varying ability to absorb heat.