It was only when Will found himself among the poplars, maples and oaks of a grove in Aventine Habitat's eastern park that he figured out why he'd felt so antsy all morning. Why he was so restless that he'd decided to defy the aches and lethargy that were now his constant companions, to leave his room for the first time in weeks and go for a long walk through the habitat. These sentences suggest that the story's conflict will involve Will's struggle with –
A) a hostile environment
B) old age and isolation
C) a complex moral dilemma
D) feelings of inadequacy