What is a key element in judgments of attractiveness across highly diverse cultures

A)  female waist-to-hip ratio and facial symmetry 
B)  facial symmetry and male body mass index 
C)  male pheromones and body mass index 
D)  novelty and large female breasts

Research has shown that across highly diverse cultures, a key element in judgments of attractiveness is a female's waist-to-hip ratio and facial symmetry. Men tend to find women with narrower waists and wider hips more attractive, as it is believed to be a sign of reproductive health and fecundity. Additionally, facial symmetry is seen as an indicator of genetic health and good developmental conditions during childhood. These preferences have been observed across various cultures, indicating their universality.