Argument A You should be extremely careful when handling a soldering iron. This is owing to the dangerous temperatures that can be reached by a soldering iron, and is evidenced by the many preventable injuries caused by soldering irons in the technical trade profession. In addition, this conclusion is for the reason that a little extra caution would have prevented a large number of these injuries.

The premise indicators in Argument A are _ _ and _

Argument B

As indicated by the fact that many great works have stood the test of time, it follows that future great works will also display similar staying power. This is because the future tends to resemble the past, and given that great books all have certain qualitative characteristics in common.

The premise indicators in Argument B are _ _ and _

Argument C

We now know that there are planets orbiting stars other than our own sun. We can conclude this because we have observed the regular but tiny wobble of other stars caused by a gravitational pull. Since we can easily observe the wobble of our own star due to the gravitational pull of the planets in our own solar system, we can infer this conclusion. Moreover, the presence of planets around other stars is now shown by direct photographic evidence.

The premise indicators in Argument C are _ _ and _