Siri Plans to Retire in 18 Years and Would Like

Siri plans to retire in 18 years and would like to receive $10 000.00 per month for twenty years starting at the end of the first month after her retirement. Calculate the amount he must invest now every month (at the end of the month) if interest is 4.9% compounded semi-annually.

A) $1 528 015
B) $4420.74
C) $1 534 362
D) $4461.50
E) $11 755