Answer:
The reader could make the connection between the "League" and the third sentence, which explains that they "organized strikes in the garment trade."
Step-by-step explanation:
According to the excerpt from We Shall Not Be Moved, a careful rereading of this excerpt would help a reader understand the meaning of the "League" mentioned in the first sentence by making a connection with the third sentence which explains that they "organized strikes in the garment trade."