[Solved] After exposure to thirty minutes of sexually explicit film, or erotic but not sexually explicit film, sexual arousal is measured in female and male subjects with a penile strain gauge or a vaginal photoplethysmograph. What is the independent variable in this study? A)sexually explicit films B)the penile strain gauge or vaginal photoplethysmograph C)gender D)amount of sexual arousal Elastic: Describes a situation in economics where the quantity demanded or supplied of a good changes significantly in response to changes in its price. Demand for Land: The desire or need by individuals or businesses to purchase or lease land for various uses such as agriculture, commercial, or residential purposes. Supply of Land: The total land area that is available for a particular use, such as agriculture, industry, or housing, which is often fixed and inelastic in the short term. MRP Curve: The marginal revenue product curve, illustrating the additional revenue generated from employing one more unit of a factor of production.