Which of the following expressions are equivalent to x2/3⋅x1/4x^{2/3} \cdot x^{1/4}x2/3⋅x1/4?
x11/12x^{11/12}x11/12
x1112\sqrt[12]{x^{11}}12x11
x2/12x^{2/12}x2/12
x3/7x^{3/7}x3/7