Which sequence of steps is correct when troubleshooting a stuck hydraulic valve?

Which sequence of steps is correct when troubleshooting a stuck hydraulic valve?

• A. Isolate system, relieve pressure, check for contamination, inspect seals, replace if necessary, cycle valve.
• B. Relieve pressure, isolate system, cycle valve, inspect seals, replace if necessary, check for contamination.
• C. Inspect seals, replace if necessary, isolate system, relieve pressure, cycle valve, check for contamination.
• D. Cycle valve, isolate system, relieve pressure, inspect seals, replace if necessary, check for contamination.

Answer: (A)