Sigma Bank Has the Following Balance Sheet in Millions of Dollars.Unless

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. $$\begin{array} { | l | r | l | r | } \hline \text { Cash } & \$ 40 & \text { Deposits } & \$ 370 \\\hline \begin{array} { l } \text { Municipal General } \\\text { Obligation Bonds }\end{array} & \$ 60 & & \\\hline \begin{array} { l } \text { Residential Mortgages } \\\text { 1-4 family } \\\left( 80 \% { - 90\% } \text { LTV } \right) \end{array} & \$ 100 & \begin{array} { l } \text { Perpetual Preferred } \\\text { Stock }\end{array} & \$ 20 \\\hline \begin{array} { l } \text { Commercial loans } \\\text { BB + rated }\end{array} & \$ 200 & \text { Equity } & \\\hline \text { Total Assets } & \$ 400 & & \$ 10 \\\hline\end{array}$$ 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 Sigma Bank's risk-weighted assets as defined by the Basel standards for its on-balance-sheet assets only?

A) $400 million.
B) $360 million.
C) $310 million.
D) $287 million.
E) $236 million.