Respuesta :
c. an highly valuable element with super and electric and thermal conductivity, high luster, and sensitivity
A precious metal is a highly worth element with super and electric and thermal conductivity, high brightness, and sensitivity.
What is precious metal?
Precious metals are defined as an extraordinary, naturally occurring metallic chemical element of high economic numerical quantity. Chemically, precious metals tend to be less unstable than most elements. They are usually formed and have a high brightness/luster.
In the experiment, it is discovered that rhodium is a most precious metal than gold.
The most precious metals are:
Rhodium, Palladium, and Gold.
Therefore, option C is correct.
Learn more about the precious metals, refer to:
https://brainly.com/question/1336406