Two sealed, pyramid-shaped beakers contain what are clearly identical amounts of a liquid. however, a child suddenly judges them as holding different amounts of liquid after one of the beakers is inverted. the child apparently lacks a:

Concept of Conservation          

Explanation:

Conservation: According to Jean Piaget who was a psychologist, the term conservation refers to a logical or rational thinking ability that permits a person to discover that a certain quantity or amount of anything will remain the same in spite of adjustment of the shape, apparent size, or container.

Types:

1. Environmental Conservation.

2. Animal conservation.

3. Marine Conservation.

4. Human Conservation.                                        

i think it should be c