ow would a careful rereading of this excerpt help a reader understand the “League” mentioned in the first sentence?

The reader could make the connection between the “League” and the word “bowled” in the second sentence to conclude that they are a bowling team.
The reader could make the connection between the “League” and “shirtwaist makers” in the last sentence to realize they are the same group of women.
The reader could make the connection between the “League” and the third sentence, which explains that they “organized strikes in the garment trade.”
The reader could make the connection between the “League” and the “ILGWU men” in the last sentence to note that they are both parts of the same group.