Haven't seen this, but am curious as to what the proper call would be.
Team A has the ball, 2nd and 10 on Team B's 30 Yard Line. The QB throws an interception, and Team B returns the ball to their 40 Yard Line where the ball is fumbled and Team A recovers.
A. First and 10 for Team A.
B. 3rd and 20 for Team A