Based on Porter's $5$ Forces, how does the Internet affect the bargaining power of buyers and sellers in relation to commodity products and differentiated products?

The Internet has no significant impact on the bargaining power of buyers and sellers, as the effect of increased price transparency is offset by the larger customer both commodity and differentiated products.

The Internet increases the bargaining power of buyers for commodity products by increasing price transparency, but can strengthen supplier bargaining power for highly differentiated products by expanding the customer base and potentially increasing the price through wider audience bidding.

The Internet uniformly increases the bargaining power of buyers and lowers the bargaining power of suppliers, regardless of whether products are commodities or differentiated.

The Internet only affects the bargaining power of buyers and sellers in the auto sales and jewelry industries, where products are commodities and price transparency is crucial.

The Internet decreases the bargaining power of buyers for commodity products, while increasing the bargaining power of suppliers for differentiated products.