which tool would be best to make this?\nchamfer\ndraft\nrib\nloft

which tool would be best to make this?\nchamfer\ndraft\nrib\nloft
Answer
Brief Explanations:
A rib is a structural feature used to strengthen a part, often seen as a triangular - shaped element in 3D models like the one shown. A chamfer is an angled edge, a draft is a slope for mold release, and a loft creates a 3D shape from 2D profiles. The yellow triangular part in the image is a rib for added strength.
Answer:
C. rib