Emily is a cash-basis taxpayer, and she was an especially productive salesperson last year. In December of last year her supervisor told Emily she had earned a $5,000 bonus. However, Emily received the bonus check after year-end. Identify the principle that will determine when Emily is taxed on the bonus.

A. ASSIGNMENT OF INCOME

B. CONSTRUCTIVE RECEIPT

C. RETURN OF CAPITAL PRINCIPLE

D. WHEREWITHAL TO PAY

E. ALL OF THESE CHOICES ARE CORRECT