Question

during world war ii, the battle of guadalcanal was significant because it
was the first decisive victory for american naval forces.
evened out the naval strength of the japanese and us navies.
was the first major allied offensive against japanese forces.
allowed japan to construct an airfield from which to attack the allies.

Explanation:

The Battle of Guadalcanal (1942-1943) marked the first time Allied forces launched a major, successful offensive to seize territory from Japanese control in the Pacific during WWII. The other options are incorrect: the first decisive American naval victory was the Battle of Midway; the battle did not even out naval strength (Japan still had remaining power); and the Allies captured the Japanese airfield on Guadalcanal, not the other way around.

Answer:

was the first major Allied offensive against Japanese forces.