Answer:
D.
Step-by-step explanation:
Franklin Delano Roosevelt was the 32nd President of the United States. He successfully led America through the Great Depression and World War II. Franklin was diagnosed with infantile paralysis in 1921 when he was 39 years old.
Despite being physically crippled, he reinforced America with confidence and strength.
The historian James Tobin, in his interview, once said that Roosevelt, though was crippled but this disability helped him to gain strength and confidence. His struggle to overcome his affliction was the most important contribution in the development of his confidence and strength.
So, the correct answer is option D.