What was the reason for the conservation program in the United States during World War II? I - To reduce oil consumption on the East Coast and fre...

What was the reason for the conservation program in the United States during World War II?

I - To reduce oil consumption on the East Coast and free shipping and supplies that could be redirected to England.
II - To counter the U-boat menace and establish bases in Newfoundland, Greenland, Iceland, and Bermuda.
III - To mobilize the nation's railway tank cars to rush supplies to the East Coast.
IV - To launch a high-profile voluntary conservation campaign, which included the distribution of windshield stickers that said, 'I'm using one-third less gas.'
a) Only I and III are correct.
b) Only II and IV are correct.
c) Only I, III, and IV are correct.
d) Only II, III, and IV are correct.
e) All statements are correct.