Answer:
Countable and or numerable items set core knowledge systems
Explanation:
Core knowledge systems includes; a) Geometry and spatial systems, b) Countable items sets systems, c) Inanimate object knowledge system, d) Animate agents or creatures e) Social identification and interaction
Within the countable items, number set knowledge system are three principles including the reduction of accuracy as the number values increases, same disposition to items that are being counted, arithmetic sensibilities
Given that Alejandro is able to recognize that the sum of the cheerios he has is less than the sum of cheerios his mom has, it is related to the countable items set system, and Alejandro is displaying arithmetic sensibilities
