What is the leading cause of death in middle childhood?

A) Injury by accident
B) Cancer
C) HIV/AIDS
D) Upper respiratory problems

Upper Respiratory Problems

Health issues affecting the nose, throat, and bronchial tubes, including common colds, sinusitis, and laryngitis.

Injury By Accident

Harm or damage that occurs unintentionally as a result of an unexpected event or incident.

HIV/AIDS

Human Immunodeficiency Virus (HIV) is a virus that attacks the immune system, and AIDS (Acquired Immunodeficiency Syndrome) is the most advanced stage of HIV infection.