Henry Hudson is the answer to this question since he died on one of his attempts to locate it.
The Tyler and Polk administrations
Both administrations strongly supported American westward expansion.
John Tyler pressed for the annexation of Texas as a slave state during his administration (1841-45) and at the end of it, he signed a Texas annexation bill into law, which was admitted as a state in the first year of Polk's presidency.
James K. Polk, who ruled from 1845 to 1849, also supported American expansion to the point he led the U.S. into the Mexican-American War (1846-48) in which the U.S. gained what is today California and much of the present-day Southwest.
It called for the admission of California as a free state.
It strengthened the fugitive slave act.
It abolished slave trade in D.C.
I am pretty sure it's D. A market that has only one seller of a product and the seller can influence the price of the product.
If this is wrong, please tell me.
Hope this helps you! :)
