The second option is the correct one. 'Conveyor' and 'halting' are spelled correctly. Also, the comma before halting is necessary so as to give the idea of consequence.
<span>Good Morning!
The literal question that is portrayed below is the following: When was Marcus called to the office?
This is correct because the others require a subjective response, such as the latter, which requires a comparison of characteristics.
Hugs!</span>
