The relation showing number of students who passed against number of students who failed is in option B
How to find the better plot
A negative correlation refers to a relationship between two variables in which one variable tends to decrease as the other increases.
When one variable goes up, the other tends to go down, and vice versa, we have negative correlation.
In this case, the more the number of students that passed the lesser the number of students that failed. hence they show negative relationship.
This is depicted by a line running from top to bottom while moving left to right as observed in the image attached.