The characteristics of an object stays the same even though the object might change in appearance?

The characteristics of an object stays the same even though the object might change in appearance?
(a) Assimilation
(b) Conservation
(c) Accommodation
(d) Construction
✅ Answer: (b) Conservation
Explanation: Conservation is Piaget’s concept that certain properties (like volume, mass, number) remain the same despite changes in shape or appearance.