In a car race between \(A\) and \(B\) over a distance of \(60\) miles, \(B\) gives an hour lead to \(A.\) If \(A\) finishes the race in \(4\) hours assuming both \(A\) and \(B\) travel at a constant speed, how much time does \(B\) take?

1. \(B\) crosses \(A\) in exactly one hour

2. \(B\) finishes the race one hour before \(A\)

OA D