Answer:
I think that would be either a fragment or an independent clause.
Explanation:
Don't take my word for it, but I hope this helps. Good luck!
Absolutely necessary; extremely important.
"it is essential to keep up-to-date records"
The answer is Palindrome, because any word that's said backwards the same way it's said forward, for example madam. If you spell the word backward it's exactly the same as it was forward.