Find the derivative of the function and evaluate the derivative at the given x-value. ← 2 f(x) = 5x + x at x = -4 OA. f'(x)=x-10; f'(-4)= -14 OB. f'(x) = 10x -1; f'(-4)= -41 O c. f'(x)=x+10; f'(-4)=6 OD. f'(x)= 10x + 1; f'(-4)= -39

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