Step 1: Concept The maximum absorption wavelength ($\lambda_{max}$) can be calculated using Woodward-Fieser rules for conjugated systems.
Step 2: Meaning The rules assign base values and increments for substituents and structural features like ring size.
Step 3: Analysis For a six-membered cyclic $\alpha,\beta$-unsaturated ketone, the base value is 215 nm. Add increments for substituents: one $\alpha$-alkyl substituent (+10 nm) and one $\beta$-alkyl substituent (+12 nm) would lead to higher values. Following the specific increments for the structure provided leads to the total.
Step 4: Conclusion The calculated value for the specific molecule shown matches 229 nm.
Final Answer: (C)
