What was prohibited by the 18th amendment? a. the production, sale, and transportation of liquor b. the sale and transportation of slaves c. the production, sale, and transportation of guns d. the sale and transportation of drugs

It's A. because liquor was illegal because too many people were drinking it.

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the fourth amendment protects:

"the right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no warrants shall issue, but upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized."  

so this would mean the denial to search and seizure without warrant or permission.