High School

Rachel is very thin and frail. William Sheldon would most likely have classified her as a(n):

a) Endomorph
b) Ectomorph
c) Mesomorph
d) Balanced physique

Answer :

Final answer:

According to William Sheldon's somatotype theory, Rachel would be classified as an ectomorph, which describes individuals who are naturally very thin and have a hard time gaining weight.

Explanation:

William Sheldon, who was a psychologist, developed a body classification system. According to Sheldon's somatotype theory, there are three basic body types: ectomorph, endomorph, and mesomorph. Given the description of Rachel as 'very thin and frail', Sheldon would most likely classify her as a ectomorph.

Ectomorphs are characterized by a slim, linear appearance and small bone structure, and often find it difficult to gain weight or muscle mass. This body type contrasts with endomorphs, who have a rounder and softer physique and tend to store more body fat, and mesomorphs, who have a more muscular and well-defined build, and easily gain muscle.