The correct answers are 1) Doolittle’s raid, 2) The ground fighting of Marines, 3) Naval victories in the Coral and Philippines Sea, and 5) The bombing of Hiroshima.
The four steps that led to the American victory in the Pacific were: Doolittle’s raid, the ground fighting of Marines, naval victories in the Coral and Philippines Sea, and the bombing of Hiroshima.
Those moments were very important to grant the Allies victory in the Pacific. When the troops took over Iwo Jima and Okinawa, the victory over Japan was just a matter of time. Japan only needed to officially surrender. After the launch of the atomic bombs over Hiroshima and Nagasaki, Japan surrendered.