Why were Dr. Jekyll and Dr. Lanyon in an argument at the beginning of the novel? A. Dr. Jekyll was the better doctor
B. Dr. Lanyon wrote an unkind letter
C. Unscientific balderdash
D. A poker game

The only reason based on my own answer or some of my instinct jack flack up and down and then twist all around before taking his medicine is because the label of his medicine says that you need to shake well before using or before taking it.