I’m not sure what your answer choices are but, Basically, a typical Hemingway novel or short story is written in simple, direct, unadorned prose. Possibly, the style developed because of his early journalistic training. ... An excellent example of Hemingway's style is found in "A Clean, Well-Lighted Place
I’ll change math ,because it’s hard but not that hard .
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Answer: No, it is not a run-on sentence</h3>
This is one full thought that doesn't run on for too long. The "overcome with joy" portion is the dependent clause that needs the other part "Mrs. Monroe told her husband the exciting news about her promotion" which is the independent clause. The independent clause could be its own sentence without the dependent clause, but not the other way around.
B. It shows where the previous sentence's information is from.
They suffer in hell because they made poor choices.