Is the group of words a simple sentence, a compound sentence, or a run-on sentence?

This is very hard that is much softer.

A.
run-on sentence

B.
simple sentence

C.
compound sentence
i think it is a

Question

Is the group of words a simple sentence, a compound sentence, or a run-on sentence? 


This is very hard that is much softer.
 
 A.
run-on sentence
 
 B.
simple sentence
 
 C.
compound sentence
i think it is a

anonymous · Answer

a is correct  medals are appreciated

inowalst · Answer

run-on sentences are sentences that keep going when they should have periods within them.
simple sentences are sentences such as, I like dogs. You're not describing the dog or anything.
compound sentences are sentences that contain at least two independent clauses.