In which sentence is the singular possessive of lobster formed correctly?
a. That lobsters' claws were sharp and powerful.
b. That lobsters claws were sharp and powerful.
c. That lobsters's claws were sharp and powerful.
d. That lobster's claws were sharp and powerful.
The correct answer is D) That lobster's claws were sharp and powerful. A isn't correct because there is only one lobster, not more of them. B is incorrect because there has to be an apostrophe somewhere. C doesn't exist.