Answer: Select A “I wish to opt-out of the 48h week restriction”
Explanation:
A- "I wish to opt out of the 48h week restriction” means that you would like to opt out of the 48h week restriction, so it is the correct answer.
B- "I do not wish to opt out of the 48h week restriction" means that (it's a double negative) you would like to continue with the 48h week restriction.