Question

what was the tet offensive?
a series of surprise attacks launched by north vietnamese forces against every major city in south vietnam
an all - out invasion of north vietnam by south vietnamese and american troops
a combined north vietnamese and chinese attack on the american navy in the gulf of tonkin
an american bombing campaign against communist forces in laos and cambodia

Explanation:

The Tet Offensive was a significant military campaign during the Vietnam War. It involved a series of surprise attacks launched by North Vietnamese forces against major cities in South Vietnam. This was a strategic move that aimed to disrupt the South Vietnamese and American forces. The other options are incorrect. The second option is the opposite of what happened (it was North Vietnamese attacking South, not the other way around). The third option mentions a combined North Vietnamese - Chinese attack on the American navy in the Gulf of Tonkin which is not related to the Tet Offensive (the Gulf of Tonkin incident was a different event). The fourth option is about an American bombing campaign in Laos and Cambodia which is also not the Tet Offensive.

Answer:

a series of surprise attacks launched by North Vietnamese forces against every major city in South Vietnam