Which of the following are metalloids?

Correct option is C

The correct answer is (c) Boron, silicon, antimony
 Metalloids are elements that exhibit properties intermediate between metals and non-metals.
 They can conduct electricity to some extent, but not as well as metals.
 They also have luster and can be malleable and ductile like metals, but they can also form covalent bonds like non-metals.
 Boron, silicon, and antimony are all well-known examples of metalloids. They are used in various applications, such as semiconductors, solar cells, and flame retardants.