Pay attention.  Your answer was correct.  Moses was instructed to go tell Pharaoh to release Israel from their bondage, and after a very interesting conversation with the Lord, Moses met up with his brother Aaron.  When the two arrived in Egypt, they delivered the message and even showed Pharaoh signs to affirm their credibility.  What were these signs?

-Staff turned into snake-

-Staff turned into snake, leprous hand and some water turned to blood-

-Staff turned into snake and some water turned into blood-

-You got me.  I already gave the answer in the picture-