Some solid may remain in the reaction mixture after the initial addition of 0.48 mL of 1-methylcyclohexene and the subsequent 10-min stirring. Which of the following is the most accurate statement concerning such observation? a. Not all of N-bromosuccinimide (NBS) has been consumed in the reaction. b. There is not enough of 1-methylcyclohexene to solubilize the remaining solid. c. The bromohydrin has not been formed in the reaction. d. Diluting the reaction mixture with 4 mL of water will dissolve the remaining solid.