Can we draw the following hypothesis from the context (see options)?

Context:

Opal Koboi is a fictional character from the Artemis Fowl series by Eoin Colfer. After the character's introduction in in the series as a supporting antagonist, Colfer again used Koboi as the main antagonist of the fourth, sixth, and eighth books in the series, giving her the status of archenemy to Artemis Fowl II.

Hypothesis: Eoin Colfer has only written 3 of the books in his 8 book series with Opal Koboi being the main antagonist character.
Available options: (a). Yes; (b). It's impossible to say; (c). No;
(c).