This is incorrect because for an argument to be valid it's premises have to be truthful. Fallacies are logical errors which make the premises untruthful and should therefore be avoided. There are various types of fallacies but most commonly they are divided into inductive and deductive fallacies.
B. two sources written by the same author are used
Based on the given question, the best answer for this would
be:
C. showing us his personality and goals.
The activities that were to given to Algernon was to show a
side of his personality to the readers wherein each challenge presented his
intentions and thoughts.
you didnt post a pic of the options to pick from
C. under the table
hope this helped!