Final answer:
The time when Irinia's dog learned to link the leash with walks is known as the acquisition phase in classical conditioning. option A is answer
Step-by-step explanation:
The period of time during which Irinia's dog learned to associate the leash with going for walks is called acquisition.
This is the initial learning phase in classical conditioning, where an association between a neutral stimulus (the leash) and an unconditioned stimulus (going for walks) is established, causing the dog to elicit a conditioned response (wagging its tail) at the sight of the leash. option A is answer