What are the different systems of weaning in alpacas and llamas?

The first system consists of preventing the cria from continuing to suckle, so that the mother's lactation ceases, but without permanently separating the mothers from their offspring.
The second system consists of permanently separating the offspring from their mother.
a) Only the first statement is correct.
b) Only the second statement is correct.
c) Both statements are correct.
d) Both statements are incorrect.