Instructions: You are given a paragraph, a question and some answer options (associated with "A", "B", "C", "D", etc.) You need to list all the correct answer options with their associated letters (e.g. "A" can be a valid answer). Note that sometimes, more than one option can answer the question correctly and completely. In those cases, please generate all such options separated by a comma (e.g. "A, B" is a valid answer). Do not generate anything else apart from one or more of the following characters: 'A', 'B, 'C', 'D', etc.
Input: Paragraph- Sent 1: Allan sat down at his desk and pulled the chair in close.
Sent 2: Opening a side drawer, he took out a piece of paper and his inkpot.
Sent 3: After filling his pen, Allan looked at his paper in the orange glow from the lantern set back in the desk's right-hand corner.
Sent 4: His pen cast a forbidding line of shadow slanting across the page, echoing the inky darkness crouching in the edges of the lantern's struggling glow.
Sent 5: The only other illumination came from a lurid moonlight filtered through thin branches and clouds, casting its bone-pale glow onto the pine floorboards.
Sent 6: Allan unfolded another page, this one crowded with ranks of letters in tight formation from left to right.
Sent 7: The lines of letters stepped into their divisions, in the shape of a story's outline: the loose, dry skeleton of a tale lay exposed beneath their feet, awaiting tendons, muscle and blushing skin.
Sent 8: Allan reviewed the troops, all prepared to disembark, their task to form the tale of a young man returning home from Life Abroad to find his childhood friend a bride to-be, thus upsetting the apple cart of his life's plan, clarified – of course – by his very time away from her he loved best.
Sent 9: Although the concept was a simple one, Allan thought it had potential.
Sent 10: Besides, the public liked a good, simple romance.
Sent 11: Perhaps this will be more saleable, he thought and began to write.
Sent 12: They gazed at each other, lost in the rapture of love based so deeply within their hearts that they had never seen it before.
Sent 13: "What about Roger?"Sent 14: she asked, knowing that the answer no longer mattered. 
Question: What steps did Allan take before writing? (A) Removed his desk, sat down at a drawer, filling paper, pen and inkpot, opened his pen (B) Sat on his pen, and filled up his book (C) Sat at desk and filled his pen with ink (D) He emptied his pen (E) Filled his pen and got a stack of envelopes (F) Ate a snack and filled his pen (G) Sat on his book and filled his desk.
Output:
C.