200
Which of the following events best helps to advance (move forward) the plot? (“I put forward my arm, and shuddered to find that I had fallen at the very brink of a circular pit, whose extent, of course, I had no means of ascertaining at the moment.”; “But my soul took a wild interest in trifles, and I busied myself in endeavors to account for the error I had committed in my measurement.”; “I gasped and struggled at each vibration.” 200
What is “I put forward my arm, and shuddered to find that I had fallen at the very brink of a circular pit, whose extent, of course, I had no means of ascertaining at the moment.”