Advice or Result
If a given conclusion is in advice form or a certain result can be deduced out of it then such a conclusion will always be true. But of course, the conclusions should be related to the given statement.
Example: With the increase in consumption of petroleum products, it is feared that petrol will be a rare commodity in near future.
Conclusion: Petroleum Products should be used efficiently.
Explanation: Here the given conclusion is in advice form. So such a conclusion is always true.
Avoid Pre-Assumptions
If a given conclusion contains a "Pre-Assumption" then such a conclusion is always wrong.
Example: Many people have been admitted to the hospital. It is assumed that junk food is poisonous.
Conclusion: Junk food is always poisonous.
Explanation: Now as per the given conclusion, it is very clear that we are trying to make a "Pre-Assumption" based on the unhealthy effects of junk food. So, such "Pre-Assumed" conclusions are always wrong.