The correct answer is D) Committee of Public Information.
The government agency that would have issued this poster was the Committee of Public Information.
I have attached the picture referred so you can better see the image.
The title of the picture is "Forget Me Not. Help Save the Belgian Babies." It was created by Josef Pierre Nuyttens. It was a poster during World War 1 years, to support Belgium.
The Committee of Public Information was an agency of the US federal government created on April 13, 1917, to elaborate works of propaganda like the one shown above, aimed to convince the American people that war was necessary and to ask the support of US citizens to the war effort.