Which of the following statements are true?

The true statements are that validity is an attribute of deductive arguments and that a valid deductive argument cannot combine all true premises with a false conclusion.

Validity is a property of the argument's form, and it is claimed only for deductive inference, making Statement 1 true.

A valid argument is exactly one whose form guarantees that true premises cannot yield a false conclusion, making Statement 4 true.

Validity attaches to arguments as wholes, never to a single proposition standing alone.

Nor does validity require the premises to be actually true, so it concerns the premise-conclusion link rather than the facts.