Question

In this quote about personal essays from author Barry Lopez, which words are an oxymoron?

It is, I think, the rarest of leisure, hard work mixed with hard pleasure, to refine one's time of deep thought or light regard into the utterly self-absorbed and equally and abundantly outward-seeking shape of the personal essay—a story comprised of found fact, of analyzed emotion, of fictive memory.

A.
hard work
B.
hard pleasure
C.
deep thought
D.
outward-seeking