
Passage: Using the X-ray technology of the European Synchrotron radiation Accelerator, the researchers scanned a fossil of a true-footed snake hidden in an ancient rock dating back 9500 million years. It turns out that this snake is very similar to modern terrestrial lizards, which helps to unravel the mystery of the origin of snakes. The research report points out that the snake is 50 centimeters long. On the surface, it has only one foot, about 2 centimeters long. The other foot of the real foot snake was found by X-ray scanning. The reason why this foot is not easy to detect is that it was alienated in the rock, with only four bones in its ankle and no toes, indicating that the feet of true-footed snakes had deteriorated at that time.
Question: Which of the followings, if true, can best support the views of the above scholars?
A. A.The true-footed snake lived at a time when snakes evolved from non-footed animal to legged lizards.
B. B.The true-footed snake lived at a time when snakes evolved from a legged animal to non-footed animal.
C. C.The true-footed snake lived at a time when snakes degenerated from non-footed animal to a legged lizard.
D. D.The age of this true-footed snake coincides with the period when snakes degenerated from a legged animal to a non-footed animal.
Answer: