Which image from John Keats's "To Autumn" best captures the bountiful nature of the season?
a. "Sometimes whoever seeks abroad may find / Thee sitting careless on a granary floor"
b. "Where are the songs of spring? Ay, where are they? / Think not of them, thou hast thy music too"
c. "The red-breast whistles from a garden-croft; / And gathering swallows twitter in the sky"
d. "To bend with apples the moss'd cottage-trees, / And fill all fruit with ripeness to the core"