Using the Guidance Manual for Loading the M.V. Grand Haven, determine the amount of ballast required in tank No. 1 (P&S) to maintain drafts of 17'-00" forward and 22'-06" aft for a vessel loaded with grain which has a test weight of 43 lbs.

Correct Answer: Option A — 23 tons each

Using the specific grain test weight curves in the M.V. Grand Haven Guidance Manual, a grain test weight of 43 lbs demands minimal corrective moment, requiring exactly 23 tons of ballast in each of No. 1 port and starboard tanks to achieve desired drafts.