Assuming That a User Enters 68 as the Score, What

Assuming that a user enters 68 as the score, what is the output of the following code snippet?
Int score = 68;
If (score < 50)
{
System.out.println("F") ;
}
Else if (score >= 50 || score < 55) { System.out.println("D") ; }
Else if (score >= 55 || score < 65) { System.out.println("C") ; }
Else if (score >= 65 || score < 75) { System.out.println("B") ; }
Else if (score >= 75 || score < 80) { System.out.println("B+") ; }
Else { System.out.println("A") ; }

A) D
B) C
C) B
D) A