单项选择题

Not having been discovered，many laws of nature actually exist in nature．（）

A.虽然许多自然界的规律尚未被发现，但它们确实存在于自然界中。
B.存在大自然中的很多法律还没有被科学界发明出来。
C.许多自然界的规律实际上存在于自然界中，尽管不能被发现。
D.尽管很多自然界的规律没有被找出，但是这些规律实际上存在于自然界中。

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