What is the answer I don’t know it as soon as possible plz

In 1816, john c. calhoun proposed that: a. that the federal government aid in the construction of roads and canals to improve transportation to and from the west b. the united states should end slavery. c. the united states should increasing the size of the navy and invade central america. d. the united states should annex hawaii

What did the marshall plan do ? apex a. send aid to countries in europe b. sent atomic weapons to asia c. sent more ships to the pacific d. sent aid to the soviet union answer ; is a

What would be considered a secondary source about the assasination of abraham lincoln