Which component of an anchor is known for having broad arms or palms that dig into the ocean floor?

The component of an anchor known for having broad arms or palms that dig into the ocean floor is referred to as the fluke. The fluke is designed to create holding power by digging into the seabed, ensuring that the anchor can effectively hold the vessel in place. These broad surfaces increase the contact area with the bottom material, allowing for better penetration and a more secure grip.

A well-designed fluke provides the anchor with the necessary stability and resistance to being dislodged by wind or current, which is critical for maintaining the position of a boat. The other components have distinct functions; for example, the crown connects the flukes to the shank, the shackle connects the anchor to the chain or rope, and the shank serves as the main body of the anchor. Hence, the fluke is specifically responsible for the gripping action that characterizes effective anchoring, highlighting why it is the correct answer in this context.