Answer:
Run-on sentence
Explanation:
A run-on sentence is a type of sentence that consists of two or more incorrectly connected independent clauses. When these clauses are simply put together with no punctuation mark or conjunctions, we get a fused sentence. When they are connected by a comma without a coordinating conjunction, we get a comma splice.
The given sentence is an example of a comma splice. It consists of two independent clauses:
They are connected just by a comma, which is incorrect. This can be corrected by adding a coordinating conjunction after the comma, turning the comma into a semicolon, or splitting these clauses into two sentences.
