The main idea or central message is where the author can convey through his story, poem, novel, or play what he wants the readers to learn or what lessons we should acquire after the literary work. It is usually the theme or moral of the story.
Answer: A. We are going to the McDonald Observatory where we will try to see Mars and other planets.
Explanation: The name of the observatory is "Mcdonald Observatory" so you would capitalize both, along with Mars. Please mark barinliest <3
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