Correct option is C
The correct substitution of the quoted words is "safely navigated".
Explanation: "Safety navigated" is incorrect because "safety" is a noun and does not function as an adverb. "Safely" is the correct adverbial form to modify the verb "navigated," indicating the manner in which the ship was navigated.
Grammatical rule used: Adverbs modify verbs to describe how an action is performed.
Example: He carefully navigated through the crowded street.