Answer:
Water because it's a neccessity
Explanation:
All neccessaties have inelastic demand because humans can't live without them.
The other goods are luxuries and they have elastic demand. they are wants
The correct answer is sense organs.
When a baby is having a bath, several of his sense organs are being stimulated simultaneously, which is generally enjoyable for babies since they have a keen sense of curiosity and take delight in exploring new stimuli and sensations. To specify, during a bath, the baby has visual stimuli to look at (bubbles, water, etc.), pleasant fragrances (from the soap) and sounds (splashing).