2015 ASA Umpire Exam questions

[Tru_in_Blu]

43. In a game played in the Senior Slow Pitch Division, the game is over after four complete innings with the score:
a.) Home 26 - Visitors 10 delta 16
b.) Home 31 - Visitors 9 delta 22
c.) Home 18 - Visitors 3 delta 15
d.) None of the above.

So this is an updated rule as posted:
Rule 5, Section 9A [3]b: Senior Slow Pitch Run Ahead Rule will be – 20 after 4 innings and 15 after 5 innings.
Comment: Removes Run Ahead Rule after 3 innings and defines the new run ahead rule for Senior’s Slow Pitch Classification of Play.

Responses A. & C. clearly don't get to the 20-run differential. I am curious about how in a complete game with the home team winning, how the score got to a differential of 22. Shouldn't the game have been stopped when the differential of 20 was reached? Keep in mind that the scenario indicates that we have completed 4 innings. The only way it makes sense to me is if folks lost track of the score and then tallied after the inning was over.