Answer:
A. Independent Variable (IV): description / picture of girls
B. Levels of the IV: two levels
C. Dependent Variable (DV): attractiveness
Step-by-step explanation:
The above experiment presents two levels of independent variable.
In summary, we can say that these levels are related to the number of experimental conditions that the independent variable can cause. As shown in the question above, the independent variable is the girl's photo and description. The conditions that this variable can cause is to stimulate attractiveness, or to discourage the throughness of those who observe it, that is, there are two conditions, so there are two levels of independent variable.