Presently i heard a slight groan, and i knew it was the groan of mortal terror. it was not a groan of pain or of grief—oh, no! —it was the low stifled sound that arises from the bottom of the soul when overcharged with awe. i knew the sound well. many a night, just at midnight, when all the world slept, it has welled up from my own bosom, deepening, with its dreadful echo, the terrors that distracted me. i say i knew it well. i knew what the old man felt, and pitied him, although i chuckled at heart. which of the following best describes the mood this excerpt evokes? a. painful b. fearful c. bashful d. cheerful