HDI stands for

A. Human Development Infrastructure
B. Human Development Industry
C. Human Development Index
D. Human Development Institute

If the cross elasticity of demand is -2 ?

A. The products are substitutes and demand is cross price elastic
B. The products are substitutes and demand is cross price inelastic
C. The products are complements and demand is cross price elastic
D. The products are complements and demand is cross price inelastic

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