Why Did Britain React So Strongly to the Argentine Attack

Why did Britain react so strongly to the Argentine attack on the Falklands/Malvinas Islands?

A) The discovery of oil near the islands made the territory vital to its security.
B) The British public opposed Argentina's attack and supported the prime minister's aggressive response.
C) The British public felt that the Falklands were vital to its economic well-being.
D) The islands' location was strategically important to Britain.
E) Britain's economy was growing rapidly at the time,and it could afford to go to war with a weaker country.