Three-year-old Keisha is learning to drink without using her sippy cup. Excited to show her big-girl ability, she reaches for her glass and spills juice on her new dress while eating brunch at her grandmother's house. Keisha begins to cry, fearful she may be punished, but her grandmother quickly wipes up the juice, soaks up the spill from the dress, and kisses Keisha on the forehead, saying, "It's okay, honey. Some days we spill things; other days we don't. I'll get you another glass." Keisha's grandmother is supporting what Erik Erikson refers to as .

Initiative.

Explanation:

The psychosocial developmental theory was proposed by Erik Erikson. The theory is divided into eight stages of development; the successful completion of each stage promotes a positive personality development or else leads to negative building of personality trait with the failure at the stages.

In the given scenario, Keisha's grandmother is depicting the stage of Initiative v. Guilt.

Initiative v. Guilt is the third stage of the theory in which children learn to develop new skills of initiating games and other activities. If children, at this stage are given the opportunity to initiate the activities, they develop a sense of security and initiation. Conversely, if the parents or guardians squelch this skill in children, it may lead to a sense of guilt in the children.

In the case stated above, Keisha's grandmother is giving opportunity to Keisha to initiate her newly developed skill of drinking with her sippy cup by not rebuking Keisha when she spilled the juice on her new dress.

So, the correct answer is initiative.

c. reserves power to the states and people