Final answer:
President Theodore Roosevelt did not criticize the muckrakers for exposing corruption; in fact, he appreciated their role in shining a light on social and political issues.
Step-by-step explanation:
The statement 'President Theodore Roosevelt criticized magazine journalists who exposed corruption in government and business by calling them muckrakers' is False.
President Theodore Roosevelt actually coined the term 'muckrakers' to describe the investigative journalists who exposed corruption and problems in American society. While he had some criticisms of the way they forced agendas into politics, he also recognized and praised the importance of their work in bringing about positive change during the Progressive era.
Thus, President Theodore Roosevelt did not criticize the muckrakers for exposing corruption; in fact, he appreciated their role in shining a light on social and political issues.