Please answer I would really appreciate if you did, Thank you!

answer:

a

hope this give me a and brainliest

explanation:  

an electrode is a metal whose surface serves as the location where oxidation-reduction equilibrium is established between the metal and what is in the solution.

YE

Explanation:

Although butter is high in calories and fat, it contains a variety of important nutrients as well. For example, it's a good source of vitamin A, a fat-soluble vitamin needed for skin health, immune function, and healthy vision