if demand is relatively inelastic compared to supply then we know that consumers: a) pay the incidence of an excise tax increase on a product b) pay a smaller portion of the excise tax increase on a product compared to producers c) equally share the increase in the excise tax with the producers d) could pay the greatest share, equally split, or pay the smaller share of the excise tax increase on a product since it depends more on the size of the tax increase