Identify the correct statement about the relationship between animal and environment in two units.

The first unit explains the homeokinetic mechanisms of the animal in the adaptation-stress dyad, and the second unit addresses the different organic balances of the animal to analyze how management and health practices affect these balances and consequently the productive and reproductive parameters of the animals.
In the first unit, the sympathetic and parasympathetic subsystems are considered dialectical pairs that participate in stress responses, while in the second unit, the animal's thermal, circulatory, blood, osmotic, respiratory, hydro-mineral, and acid-base balances are addressed.
The first unit deals with the different organic balances of the animal to analyze how management and health practices affect these balances and consequently the productive and reproductive parameters of the animals, while the second unit explains the homeokinetic mechanisms of the animal in the adaptation-stress dyad.
a) Only statement 1 is correct.
b) Only statement 2 is correct.
c) Only statement 3 is correct.
d) Statements 1 and 2 are correct.
e) Statements 2 and 3 are correct.