Explanation:

- Option 1: When the execution of murder falls short

- If someone attempts murder but does not succeed, they can still be charged with attempted murder.

- Option 2: Causing miscarriage

- In some legal systems, causing a miscarriage may be penalized, but there are significant punishments for attempting and causing a miscarriage unlawfully.

- Option 3: Suicide

- Attempting suicide can be punishable, but actual commission (successful suicide) is not penalized because the individual is no longer alive.

- Correct Answer

- Option 4: Exposure with intention to abandon the child

- Abandoning a child can be an offense, but attempting and not succeeding might not hold the same penalties.