🔍 Key Concepts

• Load line marks and what they indicate about allowable draft in different seasons and water types • The standard vertical order of the load line marks from least dense (fresh/warm) to most dense (cold/rough) water • How tropical, summer, winter, and fresh water conditions affect a ship’s draft and freeboard

💭 Think About

• Think about which condition (tropical, summer, winter, or fresh water) allows the ship to sit deepest in the water, and which requires it to ride higher for safety • Recall the usual sequence of marks from top to bottom on the right‑hand side of the Plimsoll mark and match the letter D’s position in that sequence • Ask yourself: does the mark at D lie above or below the basic ocean "summer" reference mark?

✅ Before You Answer

• Confirm from your notes or memory the top‑to‑bottom order of the marks: Tropical Fresh, Fresh, Tropical, Summer, Winter, Winter North Atlantic (or equivalent sequence used in your illustration) • Verify whether summer is treated as the reference ocean condition from which other seasonal marks are placed up or down • Double‑check the relative vertical position of mark D compared with the other right‑hand marks in the figure before choosing your answer