Although Parliament repealed the townshend duties, why did they retain the tax on tea?

In 1770 most of the Townshend taxes were repealed, but taxes on tea were retained. ... Colonists would willingly pay for cheaper Company tea, on which the Townshend tax was still collected, thus legitimizing Parliament's ability to tax the colonies.

that would be the steamboat because none of the other things are forms of transportation

general allotment act (dawes act) february 8, 1887

amendment to the dawes act, february 28, 1891

commission to the five civilized tribes (dawes commission), march 3, 1893