Irony is a rhetorical device that contrasts difference between expectations and what really happens, which can be a difference among the meaning that is said and the real meaning, or that is expected and what really happens.
The Question of South Africa was a speech delivered by Bishop Desmond Tutu when he received the Nobel Prize in 1984. To get his point across (the demanding situation in Africa) the speaker uses irony.
This answer is true because when it states facts, and other people say the same thing of what they thought, so the more people that have similar sayings, the more stronger