Question

e punctuated and spelled correctly.
at you will do anything, good or bad, provided you get
it possible to keep order on a pirate or in a troop of
istence—that the assent of the majority is the only sanction
ship:
ship;
ship
ship,

Explanation:

The sentence structure here is a continuation without a need for a colon (which is for introducing lists/quotes), a semicolon (used for separating independent clauses, not needed here), or a comma (as it doesn't create a list or a pause requiring a comma). The phrase "on a pirate ship" is a noun phrase completing the prepositional phrase, and no punctuation is needed after "ship" in this context (the original sentence's structure: "keep order on a pirate [ship] or in a troop..."). So the correct option is the one with just "ship".

Answer:

ship