A SALT IS OBTAINED AS A REACTION BETWEEN

A SALT (and water) IS OBTAINED AS A REACTION BETWEEN a base and an acid. See:

http://hyperphysics.phy-astr.gsu.edu/hbase/chemical/acidbase.html
http://lrs.ed.uiuc.edu/students/erlinger/water/background/ph.html

I hope this helps. Thanks for asking.

im taking the same test the aswer is D. a base and an acid

That's correct! A salt is obtained as a reaction between a base and an acid. This type of reaction is known as an acid-base reaction or a neutralization reaction. When an acid and a base react, they undergo a chemical reaction called neutralization, and a salt is formed along with water as a product. The salt is composed of the positive ion from the base and the negative ion from the acid.

To find information on this topic, you can refer to reliable sources such as textbooks, educational websites, or scientific articles. Additionally, the links you provided in your question can also be helpful in understanding the concept of acid-base reactions and the formation of salts. Remember to review the information thoroughly to ensure a comprehensive understanding of the topic. Good luck with your test!