Don’t sit and a table that’s taller than you when typing and focus
Even though you didn't give us the fragment with the comma slice, it isn't really necessary here as we can answer just based on these 4 options here. All options apart from the second one are correct - only the second option doesn't fix the mistake of the comma splice, whereas the other options do but connecting the sentences properly.
Answer:
A
Explanation:
B doesn't make sense because Lamar is preparing for the DISSCUSION, not the roles.
C that's cheating.
D they are supposed to be making money for the food bank which is a good idea.