The mood (or tone) of the prologue is considered as sombre, dark, macabre... since from the start we're being told that this story is going to be a story of love, death and loss.
3.
Sara has thought of an innovative and creative solution to a problem she was facing.
The correct answer for the question that is being presented above is this one: "with." You sell T-shirts in a market with price controls, where you charge the equilibrium price. The equilibrium price is already the best selling price that you can impose to a certain product.
No because the bill of rights had to the Amendments, and common sense dealt with the declaration of Independence.