🔍 Key Concepts

• Compare the shape of buoy A with standard IALA buoy shapes (cylindrical, conical, pillar, spar). • Recall that a can buoy has a very specific, simple geometric profile compared to a nun buoy. • Note that color does NOT change the type (can, nun, pillar, spar) – only the shape does.

💭 Think About

• Look at buoy A’s side profile: is it tall and narrow, or short and wide? Does it look more like a cylinder, a cone, or a thin pole? • Which of the answer choices describes a buoy that is basically a straight cylinder with a flat or nearly flat top? • Compare A’s shape with C and D in the illustration: which one is clearly conical, and which one is a more complex tower/column type? That helps you narrow down A.

✅ Before You Answer

• Be sure you can describe in words the shape of each type: can = cylindrical, nun = conical, spar = very thin and tall, pillar = a more complex tower on a base. • Double‑check that you are not using color to decide the answer – only the geometric outline of buoy A. • Before choosing, rule out at least two shapes that clearly don’t match the squat, broad outline shown at A.