I don't if this is right but I put c
Answer:D
Explanation:
None of the answers explain it concisely but they need rules so that when they are doing research all procedures are the same so that results are consistent and verifiable.
In 1936, Landon sought the Republican presidential nomination opposing the re-election of Roosevelt. ... Landon proved to be an ineffective campaigner who rarely traveled. Most of the attacks on Roosevelt and Social Security were developed by Republican campaigners rather than Landon himself.
False. Its main goal was to prevent the spread of Communism.