Identify the choice that uses one or more transitions to correctly indicate a spatial relationship.
a. our cat has an alibi; he was inside our house. he could not have tipped over the flowerpot on the porch.
b. our cat was inside our house; as has been said, the cat could not have tipped over the flowerpot on the porch.
c. our cat was inside our house; while nearby, the flowerpot on the porch could not have been tipped over by the cat
d. our cat was inside our house; therefore, the cat could not have tipped over the flowerpot on the porch