The tone of the passage is, reflective.
What is reflective?
Reflective is characterizing to deep thoughts.
Because in the passage the writer is talking about going on a solo journey just to be with nature and gives a list of reason of travelling alone can help to gain and observe other things and just being with yourself, these are the reflective thoughts the writer express his tone with in this passage.
Hence the correct option is, D. reflective
To know more about reflective:
https://brainly.com/question/9583229
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