The word "inquisitive" is defined as having a strong desire to know or learn things; being curious or eager for knowledge. It does not specifically fit into the definitions provided (a, b, or c). However, if we consider the nature of being inquisitive, it could relate to both critical and creative thinking, as an inquisitive person often seeks to understand and explore various aspects of a subject.
That said, the most accurate answer is not explicitly listed in your options. If forced to choose, one might lean towards option c (To be able to think critically and creatively) as it encompasses a broader understanding of an inquisitive mindset.