The compound that is most readily dehydrated is the one that can form the most stable carbocation or intermediate during dehydration. \( CH_3CH_2CHOHCH_3 \) can form a stable secondary carbocation, making it the most easily dehydrated compared to the other compounds.
Step 2: Conclusion.
The compound \( CH_3CH_2CHOHCH_3 \) is most readily dehydrated, corresponding to option (c).