According to the 5 C's of writing, if an essay does not contain a lot of unnecessary information it is

1 correct

2 concise

3 complete

4 conducted

Option 2. Concise.

Explanation:

In essay writing, it is important to be concise in conveying your information. However, Concise means brief. It involves writing not many words but still includes the relevant information. Writing concisely makes the information clear and easy to comprehend. Extensive sentences easily make readers feel bored and too overpowering. Writing concisely is one of the attributes of a good writer. For example, "I actually think it is very important to wash your hands". Writing this concisely will be, "I think it is important to wash your hands".