In the production of ammonia from hydrogen and nitrogen, the conversion, based on either raw material, is limited to 15%. The ammonia produced is condensed from the reactor (converter) product stream, and the unreacted material is recycled. If the feed contains 0.2% argon (from the nitrogen separation process), It is required to hold the argon in the recycle stream below 5.0%. Percentages are by volume. Identify the correct answers (A) The purge rate depends on percentage conversion (B) The purge rate does not depend on by percentage conversion (C) The purge rate need to be maintained is 1 mole per 50 moles of feed (D) The Purge rate need to be maintained at 4 moles per 100 moles feed