B. Disillusionment.
It is B because disillusionment is a feeling of disappointment resulting from the discovery that something is not as good as one believed it to be. So, in this case the narrator is disappointed in how her relationship ended and believes that there is no point looking for another relationship because she thinks it will end up the same as the first.
The main message the narrator is trying to pass across is the cruel sanctions of the United States and how it has affected development in certain countries.
<h3>What is the Central Idea?</h3>
This refers to the unfair sanctions that the United States has placed on poor nations such as Syria, and Iran and how they have increased them in the midst of a worldwide pandemic.
Hence, we can see that the author is angry with the American government and how they have helped stunt development in third-world countries through their sanctions.
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Answer C cause you have to read the passage