Choose the best topic sentence for this cause-and-effect paragraph. The paragraph is complete except for the topic sentence.
Going overseas opened my eyes to the relative wealth of
the American standard of living; I will never be ungrateful
again. I also became more aware of the connection
between people of all nations and languages and how we
are all linked in terms of things like love, music, beauty
From now on, I will also be careful about how I speak to
people who are recent immigrants to America because I
remember how terrible it was to be new to a country. I
think these changes brought about by my overseas trip are
positive and will result in a greater capacity for cultural
understanding