Children develop to their potential when caregivers have

a. strong values.

b. regulations.

c. a philosophy.

d. realistic expectations

I have the following problem with options a), b) and d) : they don't specify the kind of values or philosophy that the adults have - so they would apply also tho problematic values, such as racism.

Therefore I don't think that they're beneficial to children, at least without having more information. Therefore the best answer is d) realistic expectations.