The Île de la Harpe is an island in Lake Geneva, located on the territory of the municipality of Rolle, in the canton of Vaud. It is an artificial island built in 1837. The island was named after the political leader Frédéric-César de La Harpe, after his death in 1838. An obelisk was built on the island in honour of de la Harpe.

Choose your answer: based on the paragraph above can we conclude that "There is only one obelisk on Ile de la Harpe."?

Pick your answer from: (A). Yes; (B). It's impossible to say; (C). No;
I think the answer is
(B).