The correct answer is "C".
Iraq engaged in war with Iran in 1980 when the latter decided to invade the former on September 22nd. The war lasted 8 years and was motivated by the desire of Iraq to replace Iran as the dominant Persian Gulf State.
The invasion of Kuwait was the intervention of Iraqi force int the country of Kuwait on August 2, 1990. It resulted in the occupation of Kuwait by Iraq for about a month.
The 2003 invasion of Iraq began on March 23rd, 2003 and resulted in an ongoing presence of American forces in that country. A transitional government was established in 2005.
