Step 1: Understanding the difference between laws of nature and man-made laws.
Laws of nature describe the way natural phenomena behave, and they are universal and not subject to human influence or change. Man-made laws, on the other hand, are created by societies and can be changed or enforced.
Step 2: Analyzing the options.
(A) the former state facts of Nature: Correct — Laws of nature describe natural phenomena, while man-made laws are designed to regulate human behavior.
(B) they must be obeyed: This is true for man-made laws but not for laws of nature, which simply exist and do not require obedience.
(C) they are natural: While laws of nature are indeed natural, this option is too vague.
(D) unlike human laws, they are systematic: Man-made laws can also be systematic, so this option is not a distinguishing factor.
Step 3: Conclusion.
The correct answer is (A) the former state facts of Nature, as laws of nature describe the regular patterns found in the natural world.