Step 1: Understanding the Concept
Cresols have the formula \(\text{CH}_3\text{C}_6\text{H}_4\text{OH}\). The benzene ring carries one -OH group and one -CH3 group.
Step 2: Result
Toluene is methylbenzene, so putting an -OH on its ring gives a hydroxytoluene. They exist as o-, m- and p-cresol.
Step 3: Classify
They are monohydric phenols, not dihydric or trihydric compounds.
Final Answer:
Cresols are hydroxy toluenes, which is option (A).
\[ \boxed{\text{(A) }\text{Hydroxy toluenes}} \]