Phy Qs...Pls Help

1.A positron orbiting an antiproton would make up an atom of

A. anti-helium.
B. positronium.
C. unobtainium.
D. anti-hydrogen.
E. none of these

2.The statement, "There are regions beneath Earth's crust that will always be beyond the reach of scientific investigation," is a

A. theory.
B. speculation.
C. scientific statement.
D. hypothesis.
E. fact.