For Substitute goods, the cross-price elasticity of demand is positive since the price increase of good X causes the quantity demanded of good Y to increase.
For substitutes, Cross-price elasticity of demand is greater than zero.

For complement goods, the cross-price elasticity of demand is negative because a price increase in good X causes the quantity demanded of good Y to decrease.

For complements,Cross-price elasticity of demand is less than zero.

Answer is E.