Three of the ten commandments read as follows.

what do these three commandments have in common?

they all must be obeyed or punishment will be death.
they are to be obeyed only if an individual chooses to do so.
they are no longer followed because they are considered to be old-fashioned.
they have inspired similar laws in the united states and other countries.

The answer is not A, because there are no punishments listed with the ten commandments. The answer is most probably D, because the USA does have laws against killing, stealing, and falsely accusing against someone, especially in court. The answer is not C, because most countries follow this rule, but the answer could be B, because it is true that all of these things can be done if someone chooses to do it. 

The most likely answer is D, They have inspired similar laws in the United States and other countries. 

4.a depression is the answer