Sigma Bank Has the Following Balance Sheet in Millions of Dollars

Sigma Bank has the following balance sheet in millions of dollars. Unless mentioned otherwise, all assets are associated with corporate customers (not governments or sovereigns) . Values are in millions of dollars. Refer to table 20-8 for appropriate risk weights $$\begin{array} { | l | r | l | r | } \hline \text { Cash } & \$ 40 & \text { Deposits } & \$ 370 \\\hline \begin{array} { l } \text { Municipal General } \\\text { Obligation Bonds }\end{array} & \$ 60 & & \\\hline \begin{array} { l } \text { Residential Mortgages } \\\text { l-4 family } \\( 80 \% - 90 \% \text { LTV) }\end{array} & \$ 100 & \begin{array} { l } \text { Perpetual Preferred } \\\text { Stock }\end{array} & \$ 20 \\\hline \begin{array} { l } \text { Commercial loans } \\\text { BB + rated }\end{array} & \$ 200 & \text { Equity } & \$ 10 \\\hline \text { Total Assets } & \$ 400 & & \$ 400 \\\hline\end{array}$$ Off balance sheet contingent liabilities (Refer to Table 20-10)
$40 million direct-credit substitute standby letters of credit issued to a U.S. corporation.
$40 million commercial letters of credit issued to a corporation
Off-balance sheet derivatives (Refer to Table 20-11)
$200 million 10-year interest rate swaps
$100 million 2-year forward DM contracts
-What is the minimum total risk-adjusted capital (Tier I + Tier II) required for both of the off-balance-sheet letters of credit under the Basel II standards?

A) $3.84 million.
B) $3.68 million.
C) $3.20 million.
D) $4.80 million.
E) $6.40 million.