Read the sentence from the passage.

"under this great archway, then, against one of these doors, his big paws just inside the shadow line,-for it was not winter, but a brilliant summer morning, the grass all dusted with powered diamonds, the sky a turquoise, the air a joy,-under this archway, i say, sat a big st. bernard dog, squat on his haunches, his head well up, like a guard."

what is the effect of the imagery used to describe the scene?
a. it conveys the apprehension that the narrator feels upon approaching the large animal.
b. it foreshadows the events that will unfold in the same location later in the passage.
c. it implies that the scene would look and feel very different at another time of year.
d. it adds grandness and majesty to an otherwise simple scene.