What alloy is described as pliable, slender, and very resistant to corrosion?

The correct choice is stainless steel, which is known for its unique combination of properties that make it highly suitable for applications requiring durability and resistance to environmental influences. Stainless steel is composed primarily of iron, with a significant amount of chromium added to create a protective layer on the surface. This layer helps prevent oxidation and corrosion, allowing stainless steel to withstand various conditions and extend its lifespan.

In casual use, stainless steel is often characterized by its strength and flexibility, making it a preferred material in contexts ranging from eyeglass frames to medical instruments. Its ability to maintain a slender profile while also being pliable enough to be manipulated into various shapes adds to its versatility.

In contrast, while the other alloys can also have useful applications, they do not encapsulate the same balance of pliability, slenderness, and corrosion resistance as stainless steel. Copper, while pliable and used in many applications, lacks the corrosion resistance that stainless steel offers. Monel, a nickel-copper alloy, is also resilient but tends to be less pliable and slender compared to stainless steel. Titanium is exceptionally strong and corrosion-resistant, but it is generally less pliable and more expensive than stainless steel, making it less commonly used in applications where those specific characteristics are necessary.