[Solved] Concentration of production makes most sense when A) trade barriers are low. B) the product's value-to-weight ratio is low. C) important exchange rates are volatile. D) flexible manufacturing technology does not exist. E) the production technology has low fixed costs. Erotophilia: A positive emotional response to sexuality. Sexual Expressions: Various ways through which individuals express their sexual feelings, desires, and identity. Autoerotic Activity: Sexual activity where an individual derives pleasure from their own body or through self-stimulation, without the presence of a partner. Sexual Techniques: Various methods or practices used by individuals or partners to achieve sexual pleasure or intimacy.