Which of the following financial events or conditions may cast significant doubt on the entity's ability to continue as a going concern? 1. Emergence of a highly successful competitor. 2. Substantial operating losses. 3. Rearrangement with creditors for reduction in liability and inability to pay. 70 4. Management intentions to liquidate the entity or to cease operations 1 and 4 only 1 and 3 only The auditor was unable to confirm from the Bills receivable amounted or 3 and 4 only 1 and 2 only municating with the Sundry de