Which is NOT true of the dynamics of World War I in early 1918 (January and February)?

The final solution was nazi germany’s plan to

All of the following were weaknesses of the articles of confederation, except: a) the central government was not permitted to regulate state, interstate, or foreign trade. b) the central government was not permitted to borrow money. c) the central government had little ability to regulate money. d) the central government had no ability to tax.

Who did the first work in creating vaccines