Answer:
O B. Loan money to the government for the war effort.
Step-by-step explanation:
The liberty bonds were set up by the United State government in order to solicitate for support during the World War I. It was an avenue for those who weren’t present at the war front(in the country) to support the troops and cater for their welfare.
The bonds were given as a form of loan which were paid with interests after the war to the people who participated in the bond scheme.