D) For oft, when on my couch I lie
In vacant or in pensive mood,
They flash upon that inward eye
Which is the bliss of solitude;
And then my heart with pleasure fills
A. to restate the main idea by summarizing the supporting details
Answer:
C
Explanation:
A Nonrestrictive Clause is a type of an adjective that provides additional information about a word whose meaning is already clear.
