For this question, we will analyze each option:
1. Strong bonds are difficult to break, this is true, since the compound has a bond that can hold longer, it is required more energy to break it
2. Bonds made between two atoms with a very different electronegativity are difficult to break, these are ionic compounds and these compounds tend to have a very strong bond
3. Shorter bonds are weaker, if we are talking about the distance between two atoms, then shorter bonds tend to be stronger, and it is required more energy to break it
4. Assuming that this option is actually saying that "bond breaking release energy" this would be a wrong statement, since bond breaking requires energy and not release it
Therefore according to these assumptions, the only option correct is letter A