Question

In which sentence is the singular possessive of dog formed correctly?
A. That dogs' ears are long and floppy.
B. That dogs's ears are long and floppy.
C. That dog's ears are long and floppy.
D. That dogs ears are long and floppy.

Answer 1

C. That dog's ears are long and floppy. 

Answer 2

the awnser is C. dog's