The following code examine three variables $--$ x and y $--$ and prints the largest multiple of $15$ among them. $$If none of them is a multiple of $15,$ it prints a message to that effect.

def largestMultiple$($x$,$y$)$:

$"""$

$$ x and y are numbers

$$ Returns the maximum number of x and y that is a multiple of $15.$

$$ If none of them is a multiple of $15,$ return None $$

$"""$

$$

$$ found$15=$ False

$$ largest $=0$

$$ if x $\%15==0$ :

$$ largest $=$ x

$$ found$15=$ True

$$ if y $\%15==0$ :

$$ if not found$15$ :

$$ largest $=$ y

$$ found$15=$ True

$$ elif y $>$ largest :

$$ largest $=$ y

$$ if found$15$ :

$$ return largest

$$ else :

$$ return None

$$

Assume that largestMultiple is called with numbers as arguments.

Which of the following test suites would make a path$-$complete glass box test suite for largestMultiple? $(1$ correct answer only$)$

Question $4$ options:

Test Suite A: largestMultiple$(20,10),$ largestMultiple$(20,15),$ largestMultiple$(30,60),$ largestMultiple$(30,15),$ largestMultiple$(30,45)$

Test Suite B: largestMultiple$(40,10),$ largestMultiple$(40,30),$ largestMultiple$(45,50),$ largestMultiple$(45,15),$ largestMultiple$(45,30)$

Test Suite C: largestMultiple$(40,10),$ largestMultiple$(40,30),$ largestMultiple$(45,10),$ largestMultiple$(45,15),$ largestMultiple$(45,40)$

Test Suite D: largestMultiple$(20,10),$ largestMultiple$(20,15),$ largestMultiple$(30,10),$ largestMultiple$(30,15),$ largestMultiple$(30,45)$