The text says: “Within 24 hours, he had invented a telescope that could magnify things to make them appear ten times larger than real life.” Why is this sentence important to understand Galileo?

The answer is correct c

What u have here is a dangling do not have a subject that goes with ur verb. you do not have a " doer " for the actionhaving read the children a bedtime story, the house was shut down for the night.  so who read the children the story ? it wasn't the house. so we have to add a doer of the action to revise this sentence.having read the children a bedtime story, jill shut the house down for the night. < == this is the revised sentence.