Which Statement About the Tracheal System in Insects Is True

Multiple Choice

Which statement about the tracheal system in insects is true?

A) Tracheae are used for water transport.
B) Tracheae penetrate virtually every part of an insect's body.
C) Tracheae extend through a single tube to an insect's mouth.
D) Tracheae provide carbon dioxide to the insects' tissues.
E) Tracheae extend from external openings to the wings.