Question

choose the option that is, or that includes, a run - on sentence (a comma splice or a fused sentence).

• some people who work at home miss socializing with their colleagues; in fact, isolation and depression are two of the most common hazards of working at home.
• some people who work at home miss socializing with their colleagues in fact isolation and depression are two of the most common hazards of working at home.
• some people who work at home miss socializing with their colleagues; indeed, isolation and depression are two of the most common hazards of working at home.
• some people who work at home miss socializing with their colleagues. in fact, isolation and depression are two of the most common hazards of working at home.

Explanation:

A run - on sentence (fused sentence) occurs when two independent clauses are joined without proper punctuation or a conjunction. In the option "Some people who work at home miss socializing with their colleagues in fact isolation and depression are two of the most common hazards of working at home", the two independent clauses "Some people who work at home miss socializing with their colleagues" and "isolation and depression are two of the most common hazards of working at home" are fused together with "in fact" without proper punctuation (like a semicolon, period, or comma with a conjunction). The other options use proper punctuation (semicolon or period) to separate the clauses.

Answer:

The option: Some people who work at home miss socializing with their colleagues in fact isolation and depression are two of the most common hazards of working at home.