This was a stupendously important moment. And all the incidents, big and little, of Caesar's previous life had been leading up to it, stage by stage, link by link. This was the LAST link--merely the last one, and no bigger than the others; but as we gaze back at it through the inflating mists of our imagination, it looks as big as the orbit of Neptune.

What is the BEST connotation of the word stupendously as it is used in this paragraph?
Responses
A naive, innocentnaive, innocent
B joyful, celebratoryjoyful, celebratory
C ignorant, foolish, dumbignorant, foolish, dumb
D monumental, immense, astoundin

D monumental, immense, astounding