what was significant about the tet offensive?

it happened on the vietnamese holiday

it was a military defeat for the viet cong and north vietnamese but was a psychological victory as they demonstrated their ability to strike anywhere in the south

it signaled that the war would end quickly and decisively

it was a military defeat for the u. s. but a psychological victory as they proved they could strike anywhere in the north

The correct answer is "It was a military defeat for the Viet Cong and North Vietnamese but was a psychological victory as they demonstrated their ability  to strike anywhere in the South."

Even though the U.S. and South Vietnamese armed forces were able to expel the Viet Cong and North Vietnamese armed forces from all the positions gained in the initial stage of the Tet Offensive, the ability of the latter to strike in force towns and cities all over South Vietnam, including Saigon, the capital, it undermined the statements made by the supreme commander of all U.S. armed forces in Vietnam, General Westmoreland, about a quick end for the war at the end of that year, 1968. For most political analysts, it became evident that the end of the war was still out of reach, which had a profound and negative effect in the U.S. population and an ever increasing antiwar sentiment in the country.

where's the