I. Human beings are born with mental structures that
are designed specifically for the acquisition of
language, and therefore they are biologically
predisposed to learn language.

II. When learners imitate and repeat the language
they hear in their surrounding environment and are
positively reinforced for doing so, habit formation
(learning) occurs.

III. Language is a system of units that become
intertwined in the mind. Language acquisition is a
process of associating words with elements of
external reality.

Which of the following matches is correct relating to
the theories proposed about first language
acquisition?