(Choose 1 answer)
The main difference between Head-to-Head testing and A/B Test Splits is..
A. Head-to-Head testing is less expensive than A/B Test Splits
B. Head-to-Head testing is more expensive than A/B Test Splits
C. Head-to-Head testing is used when you have the control of the list of prospects, while A/B Test Splits is used when you don't have that control.
D. Head-to-Head testing is used when you don't have the control of the list of prospects, while A/B Test Splits is used when you have that control.
FUO
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