Elasticity refers to the degree to which individuals, consumers or producers change their demand or the amount supplied in response to price or income changes.

• A. Elasticity
• B. PED
• C. Market Forces
• D. Aggregation

Answer: (A)

Elasticity is a measure of how much quantity demanded or supplied responds to changes in price or income. It captures how sensitive buyers and sellers are to those changes. If a price change leads to a large change in quantity, demand or supply is elastic; if the quantity barely changes, it’s inelastic. The statement describes elasticity in general, not a single specific measure. The other terms are narrower or different in focus: price elasticity of demand (PED) is just one type, looking only at how demand responds to price changes; market forces refer to broader pressures that set prices and quantities but do not quantify responsiveness; aggregation means summing up many individual choices to form totals, which isn’t about responsiveness.