A business runs an effective advertising campaign for a product. Which combination indicates the effect on demand or supply together with the reason?
- Aa leftward shift in the good’s demand curve, as increased advertising cost raises the price of the product and reduces its demand
- Ba rightward shift in the good’s supply curve, as the advertising cost of the firm increases
- Ca rightward shift in the good’s demand curve, as successful advertising increases demand
- Da leftward shift in the good’s supply curve, as successful advertising enables firms to sell more