Visual-aids are exemplified as the graphic or pictorial form given to accessorize information that makes it easy to understand and remember a term or process more clearly. These aids are created with an educational motive that assists the student to remember the process as the student would be able to affiliate the visual form to the term more conveniently.
In the given question, a diagram of the 'water cycle' demonstrates a 'visual aid' that makes it easy for the students to learn this complex term more clearly by affiliating the graphic form to the definition of the term. Thus, option A is the correct answer.
the anecdote makes readers feel sorry for the man’s lack of heritage, then reminds readers that the man has an equally valuable heritage.
a. visual aid