Use the CW method to determine which mutually exclusive bridge design (L or H) to recommend, based on the data provided in the accompanying table. The MARR is 14% per year. Bridge Design L Bridge Design H Capital investment Annual expenses Periodic upgrade cost $274,000 $12,000 $50,000 (every sixth year) $326,000 $9,500 $35,000 (every seventh year) Market value Useful life (years) 83 92