Answer:
The power to restrict child labor
March 1, 1974, a grand jury in Washington, D.C., indicted several former aides of Nixon, who became known as the "Watergate Seven"—H. R. Haldeman, John Ehrlichman, John N. Mitchell, Charles Colson, Gordon C. Strachan, Robert Mardian, and Kenneth Parkinson—for conspiring to hinder the Watergate investigation
The conveys contributed to the success of allies by creating a mutual safter by sending warships to protect the merchant ships.
The transcontinental railroad was completed in 1869
I hope this helps but it should be B
