Answer:
a
Step-by-step explanation:
A is correct. On the statement of cash flows, investing activities include the acquisition and disposition of long-term productive assets or securities that are not considered cash equivalents, and the lending of money and collection of loans. The purchase of a 3-month US Treasury bill is the acquisition of a security; however, it is considered a cash equivalent and thus would not be included in investing activities. Furthermore, the exchange of cash for cash equivalents would result in no net change in cash and cash equivalents. Therefore, the purchase of the 3-month Treasury bill would have no effect on the statement of cash flows.