Final answer:
The correct answer is (a) Implicit. In fallacies of presupposition, like the fallacy of unwarranted assumption, there is typically an implicit assumption within the argument that is not explicitly stated.
Step-by-step explanation:
Fallacies of presupposition, such as the fallacy of unwarranted assumption, involve arguments that rely on certain assumed information that is taken for granted without proper justification. This assumption is typically not stated outright; rather, it is implicit within the argument, forming an underlying basis that is not explicitly presented. When analyzing such fallacies, it's important to uncover these implicit assumptions to understand why the argument may be flawed.
In response to the student's question, the correct answer is: Fallacies of presupposition contain a(n) (a) Implicit assumption in the argument. This means the assumption is not directly stated but is presumed to be true in order for the argument to hold.