Once upon a time there were six blind men. These blind men had never seen an elephant but they wanted to know what the elephant looked like. So they went near an elephant to find out.
The first blind man fell against the broad side of the elephant. He immediately said. "The elephant must be like a wall." The second blind man got hold of the elephant's tusk. He cried out, "I' m sure the elephant is like a spear. The third blind man happened to take the elephant's trunk in his hand. He said confidently, "The elephant is surely like a snake." The fourth one stretched out his hand and felt the elephant's leg. "It's clear." he said, "The elephant is like a tree trunk." The fifth, by chance, touched the elephant's ear. "I am confident that the elephant is like a fan." The sixth and the last of the blind men felt the elephant's tail. "I tell you." he cried, "The elephant is like a rope."
And so these blind men argued and argued. Each one snid he was right. But actually all were wrong.
All the six blind men were wrong to say how the elephant looked like because :

Options

A. Each one of them had touched only one part of the elephant
B. Each one of them said without confidence
C. They argued on their views again and again
D. They had decided to oppose each other