I think it is b. Most beautiful, as c and d don't make sense. A is a possibility, but I'm pretty sure it is b. Most beautiful.
The answer would be B, not every run on sentence has two complete thoughts.
Answer:
I believe the answer would be 1. or 3.
Explanation:
In academic writing, an argument usually has a main idea, which is often called a “claim” or “thesis statement”. This can later be backed up with evidence that supports the idea.
