The author has simply discussed his ideas as they seem appropriate, with no particular order of any kind. Hence, option B is the correct response.
An order in a statement can be referred to as the proper alignment of contexts according to the priority of the subject. For example, some may assign the less important ideas to the top and then gradually descend towards the important ones.
In the above-given passage the author if had discussed that national parks did exist 50 years thence but when he published his first book they were merely 3 years old, then they would have made it in proper order. But the writer wrote the second thing first and the first - second.
Therefore, option B is the correct response.
To read more about Order, refer to -
https://brainly.com/question/4159577
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