Two floating point numbers, A and B, are passed to a recursive subroutine.

1.If number A is greater than or equal to 7, the subroutine returns the value of number A to the main program.
2.If number A is less than the smaller of 7 and number B, number A is divided by 2.
The subroutine then passes the quotient and number B to itself. Most likely, what condition might this subroutine encounter?

a. Overflow
b. Miscompare
c. Infinite Loop
d. Type mismatch