Brain Game: The Whole Distance

Please enjoy today's Think Thursday challenge at the Brain Game:

Which is the longest distance?

a. A pro football field from goal-line to goal-line
b. A trip around the bases on a major league baseball field
c. From one end-line to the other (and back) on a pro basketball court
d. From one end-board to the other (and back) on a pro hockey surface 

Here is the ANSWER.
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