B. It is effective because it shows the loss of livelihood, since the store owner had to sell his grocery store.
Explanation:
Highlighted by the main letters in "I AM AN AMERICAN," the main letters have a powerful voice. In contrast to "sale to American entrepreneurs," this could mean that citizenship in the same block exceeds the other nationalities of the storeowners. The "SOLD" white poster shows that White and Pollard sold the second floor.
The way the paragrpah is written makes it seem as if the character speaking is appreciative of this "Pollyanna" character because she made him feel better. In return, he will actually adress her by her name which he probably hadn't done before.