Is an example of a scale error.
a. attempting to put one's own foot into a tiny doll shoe
b. misjudging that one can successfully walk down a too-steep incline
c. attempting to reach for an object that is too far away
d. mistakenly believing that a large sponge is heavier than a large ro

The correct answer is A. Attempting to put one's foot into a tiny doll shoe.

Explanation: A scale error can be understood in developmental psychology as an attempt a children makes to perform a task that is impossible due to the fact that the objects involved in said task are very different in size.

Scale errors are not common in children however the incidence can be under-acknowledged by parents.

In this particular case, the example of scale error is A. Attempting to put one's own foot into a tiny doll shoe.