Stroller:
Need: Physical, social and intellectual needs.
Reason: The baby cannot walk so he/she needs the stroller to carry the baby around. The parents would bring the baby out with the stroller and meet up with their friends. The baby would be comfortable in the stroller and can also learn through playing with the toys in the stroller.
The parents would need less effort to move the baby around in the stroller compared to hand-carrying the baby.