Congo was named by Europeans. Congo’s dictator Mobuto later changed the name of the country and the river to Zaire with the objective of Afticanising names of persons and spaces. However, the name Zaire was a Portuguese alteration of N=adi o Nzere, a local African term meaning ‘River that swallows Rivers’. Zaire was the Portuguese name for the Congo river in the 16th and 17th centuries. ‘Which one of the following statements can be inferred from the paragraph above?

To determine which statement can be logically inferred from the provided text, let us analyze the details step-by-step:

1. Mobutu's Objective: The dictator Mobutu changed the name of the country and the river to "Zaire" with the specific objective of "Africanising names of persons and spaces."
2. Origin of the Name 'Zaire': The text states that "the name Zaire was a Portuguese alteration of N=adi o Nzere" and that "Zaire was the Portuguese name for the Congo river in the 16th and 17th centuries."
3. Logical Deduction: Since Mobutu's goal was to Africanize the name of the country, but the name he chose ("Zaire") was actually a Portuguese alteration (a European linguistic modification) of a local term rather than a purely native African name, his attempt to completely Africanize the name was not fully successful.

Now, let's evaluate the given options:
- "Mobuto was not entirely successful in Africanising the name of his country": This directly follows from the fact that the chosen name, Zaire, has Portuguese origins/alterations, meaning the objective of pure Africanization was not fully realized. This is a valid inference.
- "The term N-adi o Nzere was of Portuguese origin": Incorrect, as the text states it is a "local African term."
- "Mobuto’s desire to Africanise names was prevented by the Portuguese": Incorrect, the Portuguese did not actively intervene or prevent him; he chose the name himself, unaware or regardless of its historical Portuguese alteration.
- "As a dictator Mobuto ordered the Portuguese to alter the name of the river to Zaire": Incorrect, as Zaire was already the Portuguese name in the 16th and 17th centuries, long before Mobutu's rule.

Therefore, the only correct logical inference is that Mobutu was not entirely successful in Africanising the name of his country.