Why do newly harvested potato tubers not germinate even when placed in favourable conditions?

Based on the following statements,choose the correct option given below.
Statement $I$: Dormancy is a state of metabolic arrest that facilitates the survival of seeds during unfavourable conditions.
Statement $II$: Mature and viable seeds do not germinate even in the presence of favourable conditions unless the dormancy period is completed.

For a seed to germinate,the most important thing needed is

Treatment of seed at low temperature under moist conditions to break its dormancy is called

What is the process called where the seed coat swells due to water entry,allowing the embryo to expand,but the seed remains physiologically dormant?

Give scientific reasons: Water is essential for germination.