Arrange the early-life interaction sequence logically. a) Mother b) Infant c) Milk d) Cryinge) Smiling Choose the order that best reflects typical cause-and-effect.

Introduction / Context:
This causal sequence tracks a common infant-care interaction: infant need → signal → caregiver response → feeding → contentment.

Given Data / Assumptions:
Infant cries to signal need; mother responds; milk is provided; infant then smiles/content.

Concept / Approach:
Order by stimulus–response chain.

Step-by-Step Solution:
Infant (b) experiences need.Crying (d) signals caregiver.Mother (a) responds.Milk (c) is given (feeding).Smiling (e) reflects satisfaction.

Verification / Alternative check:
Behavioral observations of infant care match this flow.

Why Other Options Are Wrong:
Sequences starting with milk or smiling ignore the cause that triggers caregiver action.

Common Pitfalls:
Assuming quiet infants are already content; here “crying → response → feed → smile” is the prototypical cycle.

Final Answer:
b, d, a, c, e