Answer:
C
Step-by-step explanation:
We see that the scenario gives us the sentence "It is snowing". Obviously, if it's snowing, it's possible that snow is blocking paths, roads are slippery from ice, and traffic just has to move slowly to be safe. We know that Justina is on her way here because she says so; hence, she can't be doing her homework, babysitting her brother, or unable to come.
The only answer choice that matches the description is C.
Hope this helps!