Which of the Following Statements Is True Regarding Economic Events

Multiple Choice

Which of the following statements is true regarding economic events?

A) The signing of a service contract is an example of an external event that is recorded in the accounting records.
B) Every event which affects an entity can be identified from a source document.
C) All internal and external events must be measured with sufficient reliability.
D) External events involve exchanges between an entity and another entity outside the company.