What would be the final output of this code?

Observe the code given below:
a=5.56
b=4.32
c=`echo $a + $b | be’
echo “$a + $b = $c”
echo “Final Output is $c”
What would be the final output of this code?

A.
9

B.
9.8

C.
9.9

D.
9.88