All of the Following Are Ways to Avoid Breaking a Bolt

Multiple Choice

All of the following are ways to avoid breaking a bolt when removing it except:
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A) using penetrating oil with bolts that are rusted or corroded in place.
B) applying maximum force in both directions.
C) first checking whether it is a left-hand bolt.
D) as a last resort, you may heat up the bolt that is rusted or corroded in place.