This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

In the early 1980s, rapidly rising oil revenues enabled the government to finance large-scale development projects with GDP growth averaging 5% annually, one of the highest rates in Africa. The government has mortgaged a substantial portion of its petroleum earnings, contributing to a shortage of revenues. January 12, 1994 devaluation of Franc Zone currencies by 50% resulted in inflation of 46% in 1994, but inflation has subsided since.
What did income from petroleum allow the government to fund in the early '80s?

Deuterostomes differ from protostomes in several ways. Animals from both groups possess a complete digestive tract. However, in protostomes, the first opening of the gut to appear in embryological development (the archenteron) develops into the mouth, with the anus forming secondarily. In deuterostomes the anus forms first, with the mouth developing secondarily. In most protostomes, cells simply fill in the interior of the gastrula to form the mesoderm, called schizocoelous development, but in deuterostomes, it forms through invagination of the endoderm, called enterocoelic pouching. Deuterostome embryos undergo radial cleavage during cell division, while protostomes undergo spiral cleavage.
What do deuterostomes and protostomes have in common?

At the Battle of Pulo Aura, which was probably the company's most notable naval victory, Nathaniel Dance, Commodore of a convoy of Indiamen and sailing aboard the Warley, led several Indiamen in a skirmish with a French squadron, driving them off. Some six years earlier, on 28 January 1797, five Indiamen, the Woodford, under Captain Charles Lennox, the Taunton-Castle, Captain Edward Studd, Canton, Captain Abel Vyvyan, and Boddam, Captain George Palmer, and Ocean, Captain John Christian Lochner, had encountered Admiral de Sercey and his squadron of frigates. On this occasion the Indiamen also succeeded in bluffing their way to safety, and without any shots even being fired. Lastly, on 15 June 1795, the General Goddard played a large role in the capture of seven Dutch East Indiamen off St Helena.

What was the most notable naval victory EIC  had?