Question

What was the Gulf of Tonkin Resolution?

Gave the president authority to retaliate militarily for the attack on U.S. ships and other similar incidents.
Gave the South Vietnamese approval to attack North Vietnam and assured them they had U.S. support.
Approved funding for weapons to send to South Vietnam.
U.S. declaration to North Vietnam that it would defend the rights of non-Communist nations.

Answer 1

your answer should be gave the president authority to retaliate military for the attack on u.s ships and other similar incidents

Answer 2

A. "Gave the president authority to retaliate militarily for the attack on U.S. ships and other incidents".