The standard unit cost is used in the calculation of which of the following variances? $\begin{array}{lc}\text{ Materials Price Variance }& \text{ Materials Quantity Variance }\end{array}$
A) $\begin{array}{lcccccccccccccc}& & & & \text{ No }& & & & & & & & & & \text{ No }\end{array}$
B) $\begin{array}{lcccccccccccccc}& & & & \text{ No }& & & & & & & & & & \text{ Yes }\end{array}$
C) $\begin{array}{lcccccccccccccc}& & & & \text{ Yes }& & & & & & & & & & \text{ No }\end{array}$
D) $\begin{array}{lcccccccccccccc}& & & & \text{ Yes }& & & & & & & & & & \text{ Yes }\end{array}$

According to James Tobin, the long-run value of Tobin's Q should move toward

A) 0.
B) 1.
C) 2.
D) infinity.
E) None of the options are correct.