Which of the Following Would Most Clearly Be an Example

Which of the following would most clearly be an example of Amnesty International's core mission?

A) Launching a campaign to free a Cuban citizen imprisoned for criticizing the government.
B) Calling for the release of a Japanese citizen accused of murdering his neighbor.
C) Lobbying for a new law in Pakistan guaranteeing four months maternity leave.
D) Attempting to free a woman convicted of committing a terrorist act in France.
E) Revealing the use of child workers in Bangladesh.