Draw the mechanism for the following transformation. Draw the common intermediate and indicate which is the kinetic and which is the thermodynamic product.
A. E1 mechanism; kinetic product is anti-Zaitsev
B. SN2 mechanism; kinetic product is syn-Zaitsev
C. E2 mechanism; kinetic product is Zaitsev
D. SN1 mechanism; kinetic product is anti-Zaitsev