Ariana asks the following grammar question,
Aggressive advertisements can backfire that’s why marketing directors consider them carefully
First, it’s a run-on sentence. This type of run-on sentence is called a “fused sentence” since there is no punctuation used to connect the two thoughts.
Here are three ways to fix a run-on sentence.
Use a semicolon.
Aggressive advertisements can backfire; that’s why marketing directors consider them carefully.
Add a period and a capital to create two short sentences.
Aggressive advertisements can backfire. That’s why marketing directors consider them carefully.
Use a comma and a conjunction.
Aggressive advertisements can backfire, so that’s why marketing directors consider them carefully.
My preference for this run-on sentence would be the semicolon solution. It creates a sentence with parallel structure, which helps the reader connect the logic. However, in my editing work, I sometimes come across clients whose writing is just full of run-on sentences. For those writers, I vary the way I fix the sentences, since a variety of sentence types makes for better writing.