Commercial pig farmers prefer landrace breeds because they

A: grow fast and have strong bones.

B: produce large litter sizes and fatty carcasses.

C: are highly prolific and produce a lot of milk.

D: are good feed converters and produce good quality carcasses.

20. Which of the following is an example of inbreeding?

A: Angus x Hereford

B: Brahman x Hereford

C: Local pig x large white

D: Father Zebu x daughter Zebu