According to core knowledge theorists, infants are born with numerosity, which is: A. the basic understanding of “more than” or “less than”. B. the idea that individual objects are cohesive wholes with distinct boundaries. C. the ability to quickly determine the number of items in a set without counting. D. the understanding that an object continues to exist even if it is out of sight.

• the idea that individual objects are cohesive wholes with distinct boundaries.

Explanation:

Psychologists define numerosity as the number of things in a set. Children are born with no understanding of numerosity, which means that if you gave a child two sets of items, one with 5 items and the other with 4 items, they would consider the two items as same. It is the ability to rapidly tell the approximate number of items in a given visual scene