What advantage does Amazon get by creating its own branded products?

What advantage does Amazon get by creating its own branded products?

Reduces reliance on well$-$known suppliers that otherwise sell commodity products.

Allows the firm to cut out some of the costs that would otherwise go to a branded supplier.

Allows Amazon products revealed on site and in the firm's product search results to eliminate costly advertising and other awareness$-$building spending that many rival products invest in$.$

Gives Amazon even more negotiating leverage with suppliers.

All of the above are true.