What is one of the concepts of complexity theory?

If you are trying to persuade others to your point of view on AIDS research, you would be wise to

a. give only a one-sided, fear-invoking argument. b. stress only the personal threat of getting AIDS. c. give a two-sided argument, arouse fear, and offer a solution. d. emphasize arguments directed at the opposing view.

The incidence of myopia, or nearsightedness, tends to ____ between childhood and young adulthood

a. decrease slightly b. increase c. disappear, as myopia is only found in young children d. remain constant