What Amount Will Be Included in "Cash and Cash Equivalents

What amount will be included in "cash and cash equivalents"? $$\begin{array} { | l | r | } \text { Treasury bills maturing in } 30 \text { days } & \$ 24,000 \\\hline \text { Six-month U.S. term deposit } & 12,000 \\\hline \text { U.S. dollars on hand } & 18,000 \\\hline \text { Bonds of a publicly traded U.S. company } & 10,000 \\\hline\end{array}$$

A) $30,000
B) $36,000
C) $40,000
D) $42,000