If Cole Wants to Retire with Income of $2,000 Per $\$ 1,200,000$

Multiple Choice

If Cole wants to retire with income of $2,000 per month, how much principal is necessary to generate this amount of monthly interest income if the interest rate is 6%?

A) $\$ 1,200,000$
B) $\$ 12,000$
C) $\$ 400,000$
D) $\$ 33,333$
E) $\$ 144,000$