Which of the Following Statements Is Correct

Which of the following statements is correct?

A) In 1828, Parliament removed certain restrictions against Catholics and Nonconformists.
B) In 1832, the right to vote was extended to the working class.
C) In 1833, the slave trade was abolished in the British Empire.
D) In 1835, the Municipal Corporations Act tightened London's authority over other towns.
E) In 1848, revolution on the continent caused a delay in the passage of a Public Health Act in England.