Parent places few demands or restrictions on child, but is highly involved with child

A. fine motor skills: The move from scribbling to more precise drawings reflects improved fine motor control (hand/finger coordination).
B. gross motor skills: Gross motor skills involve large-muscle actions (running, jumping) and do not explain finer drawing improvements.
C. grasping abilities: Grasping is related but the key change at this age is refinement of fine motor coordination rather than basic grasping.
D. palmer grasping abilities: The palmar (palmer) grasp is an infant reflex; by ages 3–4 children have moved beyond this reflex to voluntary fine motor control.

A. germinal: The germinal period (conception to ~2 weeks) involves implantation and rapid cell division but not the fetal movements and weight gain described.
B. fertilization: Fertilization describes the moment of conception only; it does not cover later morphological changes or growth.
C. embryonic: The embryonic period (weeks 3–8) is when major organs and basic structures form (organogenesis), but the marked weight gain and clearly distinguishable facial features occur later.
D. fetal: The fetal period (week 9 to birth) is characterized by rapid growth, active limb movements, and increasingly distinguishable facial features (face, eyelids, nose, chin).