Question
| Group ‘A’ | Group ‘B’ |
| 1. Essential commodities | (a) flatter in shape |
| 2. Unitary elastic demand | (b) change in income |
| 3. Elasticity of demand | (c) Ed = 1 |
| 4. Relatively elastic demand | (d) Prof. Alfred Marshall |
| 5. Income Elasticity | (e) Inelastic demand |