Answer:
correct
Explanation:
you used a comma to make it a sentence
Answer:
Yes.
Explanation:
She should tell Jack because telling Jack would make him know what is going on.
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.
Log is the object of the preposition because it is a noun and under is a preposition.
