If parents don't supervise and curb their children's cellphone usage, they won't focus on their academics and school activities.

Which logical fallacy does this sentence use?
A.
false analogy
B.
slippery slope
C.
false dilemma
D.
circular reasoning

The logical fallacy used in above given sentence is slippery slope.

Option: B

Explanation:

A slippery slope argument is usually a negative claim where an effort is made to prevent others from following a plan of action as it could lead to a certain undesirable consequence when they do so. The effectiveness of such a statement relies on the warrant, i.e. whether a mechanism which leads to the significant result can be shown or not. Often this sort of argument is used as a means of fear-mongering, where the possible effects of a given action are manipulated in an effort to intimidate the public.

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)