Answer :
Final answer:
TEC typically affects children in the school-age group, which is from 5 to 10 years old.
Explanation:
Transient erythroblastopenia of childhood (TEC) is a condition that typically affects children primarily within a specific age range.
Based on the age groups provided, TEC most commonly occurs in school-age children, which encompasses the ages from 5 to 10 years old.
This age range aligns with the period known as middle childhood, which follows early childhood and precedes adolescence.