Which of the following is/are the preventions of hydrogen embrittlement?

• A. Baking of steels at low temperatures (200°F–300°F)
• B. Alloying with nickel or molybdenum reduces susceptibility
• C. Practicing proper welding with low hydrogen welding rods
• D. Baking of steels at low temperatures, alloying with nickel or molybdenum reduces susceptibility and practicing proper welding with low hydrogen welding rods.