John Q. Adam's proposals are often refereed to the proof that he achieved the presidency too late since he was all for federalism, but his era was one of states rights. His proposals included:
funding a federal role in education
strengthening of the army and navy
establishing a naval academy
protecting the rights of Native Americans
funding scientific expeditions.
Those can be seen in options A, B and C clearly, but not as clearly in option D, which should be the answer:
d. To build astronomical observatories to improve the understanding of the Solar System
J. Robert Oppenheimer is often called the "father of the atomic bomb" for leading the Manhattan Project, the program that developed the first nuclear weapon during World War II.