Which one of the following statements is true? (5 points)

if f and g are differentiable, then the derivative with respect to x of the product of f of x and g of x equals the product of f prime of x and g prime of x .

the derivative with respect to x of the absolute value of the quantity x squared plus x equals the absolute value of the quantity 2 times x plus 1

if f and g are differentiable, then the derivative with respect to x of the square root of f of x equals the quotient of f of x and 2 times the square root of f prime of x .

none of these statements are true.