The French Government's Officially-Stated Reason for Invading Algeria in 1830

The French government's officially-stated reason for invading Algeria in 1830 was

A) to convert the population to Catholicism.
B) to gain control of its vast oil reserves.
C) to corner the market in palm oil.
D) to defend the national honor after the ruler of Algeria hit a French diplomat with a fly-whisk.
E) to defend the France against the terrorist acts of the Qadiriya brotherhood.