This map shows the H0 Chi Minh Trail. Which statement BEST describes the H0 Chi Minh Trail?

A) It was an escape path for people out of North and South Vietnam during the Vietnam War.
B) It was used extensively by the United States to use guerrilla warfare against North Vietnam.
C) It was used by North Vietnam to get weapons and troops into South Vietnam during the Vietnam War.
D) It was used by South Vietnam to get weapons and troops into North Vietnam during the Vietnam War.