The presence of unsaturation in an alkene is tested with bromine in carbon tetrachloride as the reagent, but not with fluorine or iodine in the above mentioned solvent.
a. Test the alkene with bromine in carbon tetrachloride reagent
b. Test the alkene with fluorine in carbon tetrachloride reagent
c. Test the alkene with iodine in carbon tetrachloride reagent
d. Test the alkene with bromine in a different solvent