Answer: I'm assuming this is a grammar correction...
In this case, your answer would be a) planner's job. Assuming the planner is a person, we would insert the 's because we are describing his/her job. We remove the comma because it is placed incorrectly in the sentence.
Hope this helps!
Here is a small short story about deceptive appearances
In a beautiful kingdom was a prince, who he himself was quite handsome. The prince was quite picky, however, he was looking for a princess to wed. He turned them all away, too ugly, too poor, too sarcastic, too perfect. There was one left. The last princess was very beautiful, she had long raven hair, piercing emerald eyes, and a sweet personality. The princess though seeming perfect, was a witch. The prince decided upon the last princess, who at their ceremony, revealed herself to be a witch. The witch cursed him to be as ugly as his soul. Proving that looks can trick you if you look no further.
Hope this helps!
The work describes Thoreau's thoughts over the course of a year spent immersed in the natural world is the answer.