Is the underlined word an adverb or a preposition

Which sentence contains correct capitalization? in “the rime of the ancient mariner,” the albatross was initially an omen of good luck. in “the rime of the ancient mariner,” the albatross was initially an omen of good luck.

How can behavioral science be applied in improving public health? a.by tracking a disease to determine its sourceb.by creating promotions that improve health habitscboth by tracking a disease to determine its source and by creating promotions that improve health habitsd.neither by tracking a disease to determine its source or by creating promotions that improve health habits

Describe your passion for sports (100 words or less). required