​The skinfold technique and bioelectrical impedance are ways to measure

A) ​the utilization of glucose by adipose tissue.
B) ​the percentage of body fat.
C) ​the metabolic activity of fat.
D) ​the ratio of height to body weight

Skinfold technique and bioelectrical impedance are both commonly used methods to estimate the percentage of body fat. They work on the principle that fat tissue has a different density and conductivity than lean tissue, allowing for an estimation of body fat based on skinfold thickness or electrical impedance. These methods are more accurate than simply using the ratio of height to body weight, which does not take body composition into account. They do not provide information about the utilization or metabolic activity of fat.