А Finding the Main Idea One statement below expresses the main idea of the artide. One
statement is too general, or too broad. The other statement explains only
part of the article; it is too narrow. Label the statements using the
following key:
M–Main Idea
B-Too Broad
N_Too Narrow
1. John O'Reilly suspected that the glittering stone he
bought was a diamond, but several store owners calmed
it was worthless.
2. Diamonds had a tremendous Impact on South Africa.
3. The discovery of a large diamond set off a diamond rush
in South Africa and contributed to that country's
reputation for mineral wealth.