The answer is C. It did indeed clear the way for all out offensive.
A reason is because when it floods it waters all their plants and it's one of their only water sources :)
Answer:
An auto-da-fé or auto-de-fé was the ritual of public penance of condemned heretics and apostates that took place when the Spanish Inquisition, Portuguese Inquisition or the Mexican Inquisition had decided their punishment, followed by the carrying out by the civil authorities of the sentences imposed.
Explanation: