Answer:
c. Two cosigners needed.
Explanation:
In the first if condition,
if ($age >= 21 && $score >= 700)
The age variable is set to 19, which is not >=21, so this condition is false.
In the second condition,
else if ($age >= 21 && $score >= 650)
Same story, age variable is equal to 19, which is not >=21, this condition is also false.
In the third condition,
else if ($age >= 18 && $score >= 680)
age condition is true because 19 is >=18, and score condition is also true, because 750 is >=680. So this condition is true.
Henceforth, variable message will contain the string "Two cosigners needed."
