$*$Suppose WESTERN Corp. must make a $$50$ million pension payment every year for the next $5$ years. WESTERN decides to immunize the payment with investments in $2$ year and $5-$year zeros.The interest rate is $4\%.$ If each bond in the market has a face value of $$10,000,$ how many $5-$year bonds will they purchase?

A$)$ approximately $8900$

B$)$ approximately $8317$

C$)$ approximately $1200$

D$)$ approximately $6727$