Correct Answer: Using whatever methods are necessary

Solution : The correct choice will be the second option.

The idiom "by hook or by crook" means by any means necessary, regardless of the methods used or the obstacles faced. It implies a determination to achieve a goal, even if one has to resort to unconventional, unethical, or questionable methods.

When someone says they will do something "by hook or by crook", they are expressing a strong commitment to achieving their goal, even if it involves using unconventional or questionable means.

Therefore, the correct answer will be: Using whatever methods are necessary.