People sometimes bite their fingernails when they are anxious. This is one example of _____

In adulthood, a typical person's head is about one-tenth of the person's total body length. At birth, the head is about _________ of the newborn's total body length

a. one-half b. one-third c. one-fourth d. one-sixth

It is best to study Hatha Yoga on one’s own, as it involves deep self-reflection

Indicate whether the statement is true or false.