Final answer:
The best revision of the sentence is option b) The author goes for a walk and notices the surroundings.
Step-by-step explanation:
The best revision of the sentence from paragraph 2 is option b) The author goes for a walk and notices the surroundings. This revision is more concise and uses an active verb to indicate the action of the author. It maintains the correct verb tense and does not include unnecessary information or pronouns.