What will be the value of grade after executing the followin…

What will be the value of grade after executing the following code?  ================= var grade: Character let score = 78   switch score { case 90…100:    grade = “A” case 80…89:    grade = “B” case 70…79:    grade = “C” case 61…69:    grade = “D” default:    grade = “F” }