Final answer:
The isomers among the given options are CH3OH and C2H6.
Step-by-step explanation:
Among the given options, the compounds that are isomers are:
b) CH3OH and C2H6
Isomers are compounds that have the same molecular formula but different structural arrangements. CH3OH and C2H6 are isomers because they both have a molecular formula of C2H6O, but their arrangement of atoms is different. CH3OH is methanol, while C2H6 is ethane.