Use a comma before 'so' if it connects two independent clauses (unless they are closely connected, and short). ..ed to make her car payment three months in a "row" so she must hide her car in friends’ garages in...
A: Rachel neglected to make her car payment three months in a row, So she must hide her car in friends’ garages in an attempt to foil the repo man. (Errors found in the sentence.).
Therefore, Letter Choice, (B), would be the Correct Answer: Katherine recently adopted a Great Dane puppy, so she spends considerable time wiping up puddles of dog urine with a sponge. (No Errors were found in the sentence.).
Hope that helps!!! : )