A deductive argument is one in which the premises necessarily follow from the conclusion. This means that if the premises are true, the conclusion will also be true. So adding assumptions only reinforces the argument, it can never invalidate a dedutive argument.
The correct answer that would best complete the given statement above would be the second option. Here is the complete statement. Adding more premises to a valid deductive argument <span>cannot make it invalid. Hope this answers your question. Have a great day!</span>
