Explain why the function has at least one zero in the given interval. C f(x) = x² - 4 - cos(x) [0, π] At least one zero exists because f(x) is continuous and f(0) > 0 while f(z) > 0. At least one zero exists because f(x) is continuous and f(0) < 0 while f(x) < 0. O At least one zero exists because f(x) is continuous and f(0) < 0 while f(z) > 0. At least one zero exists because f(x) being a second degree polynomial must have two real solutions. At least one zero exists because f(x) is not continuous. O Function O Interval

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