It would be the robin redbreast.
These are all the answers that could fill the blank: sell, market, and promote. Hope it helps and remember to mark as the brainliest answer!
Anne Sullivan, while describing her struggle to work with a young Helen Keller, wrote, "...the more I think, the more certain I am that obedience is the gateway through which knowledge, yes, and love, too, enters the mind of the child."