Multiple choice Which one of these is an opinion? Yellow is the color of a lemon. Purple is a mix of blue and red. Red is a very happy color. Black is one of the darkest colors. Reveal answer Fill a bubble to check yourself C Correct answer Explanation An opinion is a subjective statement that cannot be proven true or false. Describing red as a happy color is a matter of personal feeling, whereas the other statements are factual descriptions of colors.