3. Which one of the following words most likely contains the same root as the word iridescent?*1 pointa) Radiantb) Transparentc) Incandescentd) Opalescent

The word "iridescent" refers to showing luminous colors that seem to change when seen from different angles. To find a word that most likely contains the same root, we need to look for a word that also refers to light or color.

a) Radiant - This word refers to sending out light, shining or glowing brightly. It does not necessarily imply a change of colors.

b) Transparent - This word refers to allowing light to pass through so that objects behind can be distinctly seen. It does not imply a change of colors or even the presence of colors.

c) Incandescent - This word refers to emitting light as a result of being heated. While it does relate to light, it does not imply a change of colors.

d) Opalescent - This word refers to showing varying colors as the position and intensity of the light are changed, much like the definition of iridescent.

Therefore, the word that most likely contains the same root as the word iridescent is "Opalescent".