In which type of breeding is there an opportunity to combine desirable traits from different characteristics?

$MOET$ is a method of:

Which of the following is not a step in Multiple Ovulation Embryo Transfer Technology $(MOET)?$

Which factor is responsible for the variation in genetic makeup within a specific breed of domesticated animals?

In which method of animal breeding is the resulting progeny sterile?

Cross breeding:
$I$. Refers to the cross of a superior male of one breed with a superior female of another breed.
$II$. It helps to accumulate the desirable genes of the two breeds into a progeny.
$III$. The progeny may be used for commercial production.
Which of the statements given above are correct?