Iwo Jima was an important objective for the American military because A
the Japanese were using it as a base to attack the U. S. fleet.

B
the main Japanese naval force was stationed there.

C
U. S. planes could bomb Japan from there.

D
the islands were an important link in the Japanese supply lines.

C

Explanation:

While the Japanese were attacking US Naval fleets, it was a more defensive area on Iwo Jima.

The Japanese naval force was practically nonexistent by this time after the devastating battle of Midway against the Japanese navy.

The islands were important for supply lines indeed, but it wasn't the reason why the US invaded Iwo Jima in the first place.

a

explanation: