Q. Unlike the Battle of Midway, which historians regard as a pivotal moment in World War II, historians regard the Battle of Debrecen as of marginal importance in determining the final outcome of World War II.

1. historians regard the Battle of Debrecen as of marginal importance
2. the Battle of Debrecen is regarded as relatively unimportant
3. historians regard the Battle of Debrecen as of being marginal importance
4. the Battle of Debrecen is regarded as being of relatively minimal importance