Mac flipped a switch on the wall, and fluorescent lights flickered on. He looked around at the empty store. There were signs of a struggle. Bags of chips and candy were trampled on the floor.

How could the last two sentences here be rewritten to show the relationship between them?
a. There were signs of a struggle. Meanwhile, bags of chips and candy were trampled on the floor.
b. There were signs of a struggle. For example, bags of chips and candy were trampled on the floor.
c. There were signs of a struggle. On the other hand, bags of chips and candy were trampled on the floor.
d. There were signs of a struggle. Ultimately, bags of chips and candy were trampled on the floor.