Which sentence is punctuated correctly?
a. the ranch was full of cattle; chickens; and pigs and in the barn were horses; sheep; and oxen.
b. the ranch was full of cattle, chickens, and pigs and in the barn were horses, sheep, and oxen.
c. the ranch was full of cattle, chickens, and pigs; and in the barn were horses, sheep, and oxen.
d. the ranch was full of cattle, chickens, and pigs and; in the barn were horses, sheep, and oxen.