Education from kindergarten through the eighth grade is considered school.
elementary
secondary
postsecondary
primary

The correct answer will be option-elementary.

Explanation:

The modern education system of the world has categorized the education according to the age group of the children which could vary depending on the country. The education given to the age of 2 to 12 years is usually considered elementary education as it provides the basic formal education to the students.

The children get their elementary education from the kindergarten to the eighth grade and thus, elementary is the correct answer.

osteogenesis imperfecta (oi) refers to a congenital ailment of bones. in the condition, the bones become brittle or fragile. this ailment is a general result of the defect or mutations in the genes (colia1 or colia2). this mutation results in imperfect collagen formation either in quantity or quality wise.  

there are eight kinds of oi defects, and each kind varies with certain distinctions in symptoms. the usual symptoms include frequent bone fractures, loss of hearing in infants, protruding eyes, discoloration of the white in the eyes, respiratory issues, loosening of the joints, short stature, and other symptoms.