$($c$)$ Implement the eat$()$ and scare$()$ methods. The eat$()$ method checks the intelligence of a human$-$ if it's "high", returns true, otherwise it calls the increaseWeight$()$ method and then returns false. The scare$()$ method checks a human's bravery$-$ if it's false, it prints a line: "Human scared." otherwise it will print: "Human is too brave to scare."

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