This section took place at C.) in Canterbury
The answer is D. Power I posted on your most recent question.
1. Eugene O'Neill grew up in a theatrical family.
If (in a theatrical family) is underlined, then the answer would be the A) prepositional because "In" is a preposition.
2. Both of his parents, James and Ella, were actors.
If (James and Ella) are underlined in this, then it will surely be C) appositive.