The Following Table Contains Hypothetical Data for Canada's Balance of Payments

The following table contains hypothetical data for Canada's balance of payments (the statistical discrepancy is assumed to be zero) . All amounts are in billions of dollars

$\begin{array} { | l | l | } \hline \text { Merchandise exports } & \$ 137 \\\hline \text { Merchandise imports } & - 128 \\\hline \text { Service exports } & + 20 \\\hline \text { Service imports } & - 26 \\\hline \text { Investment income } & - 18 \\\hline \text { Transfers } & + 4 \\\hline \text { Other financial investments } & - 3 \\\hline \text { Portfolio and direct } & + 12 \\\text { investments } & \\\hline \text { Capital account flows } & + 11 \\\hline \text { Changes in official reserves } & - 9 \\\hline\end{array}$
-In a nation's balance of payments,which one of the following items is always recorded as a positive entry?

A) merchandise imports
B) the effect of changes in foreign currency reserves on the flow of Canadian dollars
C) capital flows
D) exports of services
E) investment income