Who is right?

One day, the bee mother called her four children to the front and said, "Children, your grandfather who died has told me that there is a wonderful flower growing on the land of Russia. I have never seen flowers. Today, your brothers. Take a trip and see what color the flower is.” The four little bees listened to the mother’s instructions, spread their wings, and flew to Russia “嗡嗡嗡”. Big Brother’s wings are big, his strength is big, and he flies fast. When the sun just rises from the east, he flies to his destination and finds the kind of flower. He carefully looked at the flower and went back. The wings of Xiao Er are smaller, and the sun only flies when they are at the top. He also carefully read the flowers and then flew back. The younger one is smaller than the older brother and the second brother, and flies slower until the sun sets. Like his brothers, he carefully looked at the flower and flew back. The small four are the smallest, the wings are the smallest, the slowest flying, flying, flying, until the next morning, tired and sweaty, it is not easy to arrive. He looked around the flower for a few laps and then flew back to tell his mother. When the four sons came back, the bee mother asked: "Children, do you see clearly? What color is that flower?" "Milk." Big brother answered first. "No! It's pink." Xiao Er disagreed with Big Brother's opinion. "You are all wrong! It should be dark red." Xiao San said with confidence. "It's violet, it's violet! I can see clearly, I can see clearly! Mom, don't listen to them!" Xiaosi squinted with a small mouth and was confident. "you are wrong!"