The sentence that reflects the correct usage of a plural possessive noun is the following one: Olympic snowboarders' determination drives them through the rigorous training required to remain competitive in the sport.
The possessive of most plural nouns is formed by adding an apostrophe only (snowboarders' determination). That is why that sentence is the correct option.
However, there are plural nouns which do not end in -s. The possessive of such nouns is formed by adding an apostrophe and an -s to the noun. For instance, "people's power".
Skiff Miller wanted to take the dog back and go to Alaska with him i guess but to do this he would have to take it from the couple that took the dog in and took good care of it. Skiff Miller must have gotten attached to the dog and felt a sense of love and yeahh
